Reusable vs. Disposable Bags: What’s Better for The Environment?

Is investing in a reusable bag really going to lower your environmental footprint?

In this post I will answer three main questions:

  1. What’s the environmental impact of disposable bags?
  2. What’s the environmental impact of reusable bags?
  3. When are reusable bags better than disposable bags?

The basics of comparing disposable bags vs reusable bags

Before answering any questions it’s important to understand why this is even a debate. Varying opinions on whether single use plastic bags are worse or better for the environment than reusable alternatives stem from unfair comparisons.

A few reasons why people may be comparing apples to oranges:

  1. Types – different types of disposable bags have varying impacts. There are many variations of both paper and plastic bags. There is even more variation in reusable bags. This makes it difficult to make blanket statements like “all disposable bags are worse than reusable alternatives”
  2. Focus – depending on which aspect of environmental impact you’re focusing on, the results can vary. Energy use, natural resource use, pollution, and emissions, are just a few of the different areas you can compare. To understand the full cost, you have to consider the complete environmental impact of disposable vs reusable, not just one aspect.
  3. Other – Other variables such as the technology used to manufacture the bag or how far it traveled to get the point of sale also changes the environmental impact.

They key indicators of environmental impact

There are several variables to compare when it comes to rating the overall environmental impact of bags. Here are the main 3 areas and some of the considerations of each:

  • Production – What is the impact of producing one bag
    • Energy input
    • Natural resource use
    • Transportation
    • Emissions from manufacturing
  • Use – How use of the product impacts humans or the environment
    • Impact on human health
    • Lifespan of the product
    • Environmental impact of use (if any)
  • Post Use – How disposal of the product impacts the environment
    • Pollution of natural environment
    • Emissions from disposal (gasses from breakdown in landfill or incineration)
    • Cost of recycling

The total impact of a product can be calculated using our simplified formula:

Total Environmental Impact = Cost of Production + Cost of Use + Cost of Disposal

The hot button environmental issues for bags

There are several different types of environmental impacts to consider. Some may be more important to you than others.

The most common types of environmental impact from products like bags include:

Emissions – global warming, air pollution

Natural Resource Use – deforestation, biodiversity loss, global warming

Pollution – biodiversity loss, degradation of natural environment

Some people may weight one factor as more important than another depending on their opinions of which environmental issue is most pressing.

The most common comparison for environmental impact is the product’s overall ‘carbon footprint’ which measures how much it contributes to global warming.

We’ve studied the impact of various types of grocery bags. Here’s what we found…

Defining Different Types of Bags

We’ve grouped types of grocery bags into two categories: disposable and reusable. 

Disposable Bags

Basic Plastic (HDPE) – High Density Polyethylene – this is the lightweight single-use plastic bags you find at almost every grocery store.

Paper – Paper bags are less common than plastic bags but can still be found in some stores. They are the original “disposable” bag and are intended for single use.

Reusable Bags

Cotton – These bags are often referred to as “totes”. They are woven from cotton and are build to be reused many times.

Polypropylene – This is one of the most common types of reusable bags now being distributed by retailers. Made from a more durable plastic than the HDPE bag, this reusable bag is build to be reused many times and often has a rigid insert in the bottom for added strength.

THE ENVIRONMENTAL COSTS: DISPOSABLE VS REUSABLE

How do these different types of bags stack up?

lifecycle analysis study conducted by the UK government that assessed the life cycle of these various types of bags provides some of the best data we have.

In this study they assessed the following aspects of each bag’s life:

  • Extraction and production of raw materials
  • The production process
  • Transportation to final destination
  • End of life – collection, landfill, incineration, etc.
  • Avoided products and recycling – the avoidance of virigin materials through secondary reuse or recycling

The results of this study is a comparison of the global warming potential (GWP) also referred to as the ‘carbon footprint’ for each type of bag.

Impact of Different Types of Bags

The environmental impact of 1 bag when looking at the total life.

Note: Cotton bags are not included in this graph. The study states that the global warming potential of cotton bags is more than 10 times the impact of any other bag.The Results:

Reusable bags require more material and more energy input than disposable bags which gives them a bigger environmental footprint when comparing them 1 to 1.

For 1 bag we can see that the standard disposable bags (HDPE) has the lowest impact.

But since the average person uses hundreds of plastic bags every year, we have to consider how many plastic or paper bags you displace by using a reusable bag.

Breakeven Uses: Disposables vs Reusable

When does a reusable bag become more environmentally friendly than a disposable bag?

To be more eco-friendly than a disposable plastic bag you would need to use these alternatives this many times:

Paper Bags: 4 Times

Polypropylenes: 14 Times

Cotton: 173 Times

Clearly, the more you reuse a bag, the lower its environmental impact.

Knowing this ‘breakeven’ number is important because it will help you to truly reduce your environmental impact.

Other Important Considerations

There are many variables to consider when trying to reduce your environmental impact that can effect your decisions.

Reusing Disposable Bags

When you reuse plastic bags multiple times (even if you use them as a trashcan liner) that will bring down their environmental impact. While the study we summarized in this article does take reusing and recycling into consideration, it’s important to for you to know that when you do not have the option to turn down plastic bags, reusing them is the best way to reduce their impact.

Other Materials

As this study proves, not all bags are made equal. If you can use repurposed or recycled materials to make your own tote, you will reduce your carbon footprint even more.

Using virgin materials will almost always have a larger impact on repurposing existing materials. Before you buy a reusable bag you may want to see if you already have a worthy substitute at home, or if you have a friend who already has too many…

Too Many Bags?

Reusable bags are becoming more popular and many brands give them out for free as promotional items. If you start to accumulate reusable bags you can actually increase your environmental impact. 

Remember that the best way to reduce your impact is to use less and reuse as often as possible.

Key Takeaways

Producing 1 plastic bag has a relatively low environmental impact. The impact of this type of disposable bag comes from using so many of them.

Paper bags are only more eco friendly when reused 4 times or more.

Polypropylene bags are a good choice when considering a reusable alternative. After only 14 uses this bag is already more eco friendly than conventional plastic bags.

Cotton bags have a surprisingly high environmental impact because of the effort that goes into growing cotton and producing the bags. If you can keep this bag for a long time, it will be more eco friendly than plastic bags, but it requires over 173 uses to break even.

The more times you use a bag, the more environmentally friendly it becomes. Take care of your bags and don’t accumulate more than you need.

Learn more about the plastic problem and how we can solve it:

The Problem with Plastic & Solving The Plastic Problem

History of Plastic Bags: How Did We Get Here

WHY ARE SINGLE USE PLASTIC BAGS EVERYWHERE?

Plastic bags are ubiquitous and most people don’t question it. Why?

Less than 50 years ago plastic bags were a rarity. Now you it seems like you can’t buy anything without it being carried out in a branded plastic bag.

If we can understand how we got ourselves here, maybe we can find a way to get ourselves out.

history of plastic bags

What Are Single-Use Plastics and When Were They Invented?

Single-use plastics are plastics that are designed to be used only once or for a very short period of time, and then thrown out.

Single-use plastics may be used to create everything from wrappers to plastic cups to plastic bags. Unfortunately, the convenience of single-use plastic comes at the cost of the environment.

All disposable plastic bags are considered single-use plastic. Polyethylene (the most common type of plastic used for disposable bags) was first created in 1898 but it was not until the mid 1950s that a high-density polyethylene was invented. High density polyethylene was the “breakthrough” that enabled the production of cheap, yet strong plastic bags.

Single-use plastic shopping bags first appeared in the U.S. in 1979, and were subsequently picked up by several large grocery store chains.

This seemingly simple invention changed the way we shop and had unimaginable consequences for our natural environment.

A Brief History of Disposable Bags

Polyethylene is invented

Polyethylene is invented

Polyethylene is the most common type of plastic for disposable bags
1933
High-density polyethylene (HDPE) is invented

High-density polyethylene (HDPE) is invented

HDPE gives plastics the strength they need to be light, moldable, and still strong.
1953
Karl Ziegler wins the Nobel Prize for chemistry

Karl Ziegler wins the Nobel Prize for chemistry

Karl Zeigler, one of the chemists who invented HDPE won a Nobel prize for chemistry in 1965. Plastic was a highly guarded secret when first invented as it was used by the US military during WWII as an insulating material which allowed them to place radar into airplanes for the first time.
1965
Modern plastic bag is invented

Modern plastic bag is invented

The plastic bag we use today is invented by the Swedish company Celloplast.
1965
Dixie Bag Company begins manufacturing plastic bags

Dixie Bag Company begins manufacturing plastic bags

The Dixie Bag Company begins manufacturing and marketing plastic bags as an alternative to the then-used paper bags in grocery stores.
1980s
Safeway and Kroger adopt plastic bags

Safeway and Kroger adopt plastic bags

Grocery chains Kroger and Safeway replace their paper bags with plastic.
1982
Plastic bags become the norm

Plastic bags become the norm

It didn’t take long for grocers and department stores to realize that plastic bags were stronger and cheaper. 
1982 and beyond

Plastic’s Rise to Dominance

Disposable plastic bags became so popular so fast mainly because of their convenience.

Before plastic bags, there was paper. Paper bags worked but they were not easy to carry and they weren’t nearly as strong as plastic. The most important part… paper was more expensive to produce than plastic.

The plastic bag not only made life easier for the consumer, it also saved retailers money.

Although we see the downsides of plastic bags today, you can see why at the time they were adopted so rapidly.

The Problem We Didn’t See Coming (or Didn’t Care To See)

The problem with plastic that wasn’t considered at the time, is its impact on our environment and how that inevitably impacts us.

High-density polyethylene’s application to plastic bags may have benefited the consumer and the retailer, but the environmental ramifications of widespread use are disastrous.

There are a host of issues caused by plastic bags that directly impact humans. The main issues are:

  • Environmental – from its contribution to global warming to massive ocean pollution, plastic bags have become one of the largest environmental issues of our time.
  • Health – plastics are made of synthetic molecules that can have negative impacts on our health and ramifications of environmental degradation are also taking their toll on human health.
  • Cost – the cost of disposal and clean up of plastic bags comes back to the tax payer.

Get the details hereWhy We Should Not Use Plastic Bags

What Does This Mean for Us?

Plastic bags have risen to dominance because of the need for a cheap and useful way to transport goods. Unfortunately, we are now paying the price with environmental degradation and the health implications that result.

Although most of this transition was out of the hands of the consumer, our transition to a more sustainable future very much is.

Now that we understand the impact of our disposable bag use, it’s up to us to find and use alternatives.

The plastic bag revolution started with an invention and proliferated one bag at a time as consumers found it more useful. Now it’s time for a replacement. Here are a few options: alternatives to plastic bags.

Image Sources

Fastradius.com

Cctexas.com

stopusingplasticbags.weebly.com

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No Place is Safe from Plastic

It seems we are hearing about plastic a lot these days. The environmental impact of disposable bags, the nearly 20 billion pounds of plastic entering our oceans each year, the rising amount of sea life whose lives are endangered from plastic – The list goes on and on.

But just how pervasive is this plastic problem? New research has found evidence of plastic pollution ranging from the deepest depths of the ocean all the way up to the remote Swiss mountains. Our plastic problem is, in all actuality, all around us.

Scientists have begun extensive research into plastics and their effect on the environment, and their research is becoming truly alarming. The most recent findings take us all the way down to the Mariana Trench, up through Point Nemo, the most remote point in the ocean, to the nature reserves of the Swiss mountains.

Over 10,000 m below sea level lies the Mariana Trench. Located just east of the Philippines, the Mariana Trench is the deepest section of the world’s oceans. A study published by the Global Oceanographic Data Center (GODAC) in Japan in April 2018 documented single-use plastic debris found in the trench as early as 1998.

The study also found that 92% of the plastic analyzed at depths greater than 6,000 m were made up of single-use plastics. Scientists claim to have found more chemical pollutants in parts of the Mariana Trench than some of China’s most polluted waterways, and as much as 17% of the debris was found with at least one organism – entangled, covered, or “attached”.

Another remote ocean area, Point Nemo, was discovered to have up to 27 microplastic particles per cubic meter. Point Nemo is nearly 1,700 miles from an inhabited island and deemed the “oceanic pole of inaccessibility”, yet plastics have seemed to find their way there.

And lastly, a study conducted by the Geographic Society of the University of Bern found that even in the most remote, unsettled mountain areas of Switzerland, whose recycling rate is nearly 100%, microplastics still pervade. Of the 29 floodplains studied, 90% of the soils contained microplastics, evidence of wind transport of plastic particles.

Evidence from this study has spurred even further research into microplastics, with increased concern with traces of plastic in soil, domestic livestock, and even agriculture.

It is becoming more and more apparent through studies such as these that action against plastic needs to happen immediately.

The extent of our plastic problem continues to expand and public concern is continuing to rise. There are many plastic alternatives out there to substitute for single-use plastics and regulation is continuing to expand, including the EU and the U.K.’s strategies to cut plastic pollution.

However, much and more needs to be done if we are to truly remedy the permeating and ubiquitous presence of plastic around the world.

Our Plastic Oceans

In the late 1980’s, large islands of floating trash seen by satellites were reported in the global news. Swirls of trash concentrated by the movement of the oceans’ gyres gave another hint to the then naïve public that our planet is finite after all. The world population—as of early 2018—is estimated at 7.6 billion; all contributing waste and debris to some extent.

Only one hundred years ago—when the world population had not yet reached 2 billion—trash was at worst unsightly or smelly but it was relatively harmless. Back then it eventually degraded and was not ultimately toxic to life.

In the early 1900’s, the first synthetic plastics were invented, giving way to the “plastic revolution”. As we found more uses for these new lightweight, cheap, and strong wonder materials, plastics rapidly found their way into most industries.

Today, plastics are a part of our daily lives and their prevalence can be a little overwhelming, especially when we are not welcoming them.

Our natural areas, waterways, and oceans have been polluted by plastic waste at an alarming level. It is at such an extent that gyres of plastic can be seen from space! It’s estimated that every square mile of ocean contains around 46,000 pieces of floating plastic.

While plastic debris is an eyesore and a threat to wildlife, the majority of the trash in the ocean is not even visible and poses its own threats.

A large portion of the plastic in the oceans is microplastics, composed of synthetic plastic particles so small they can barely be seen with the naked eye. The minute debris is so small and often suspended under the surface, making it invisible to satellites or even from the deck of a passing ship.

Microplastic pollution comes from countless sources, most prominently from cosmetic and household products, synthetic clothing fibers and industrial abrasives. Microplastics also result when larger pieces of plastic eventually break apart—not degrade, but break into smaller and smaller pieces.

Thin, single use plastics like disposable bags are one of the biggest offenders finding their way into our oceans.

Most plastics, when hit with UV radiation from the sun, begin to break down and gradually become microplastics over time.

A significant enough amount of microplastics now exist in marine environments to be detected in the bodies of fish sampled from different parts of the ocean. Fish and other marine creatures consume the microplastics, concentrating them in their bodies up the food chain. Humans included! People have tested positive as well for microplastics in their bodies.

Why does this matter?

Plastics are created from petroleum—hydrocarbons that when concentrated in the body are toxic. The liver and digestive system struggle and depending on the type and concentration of the synthetic particles many are known carcinogens. Synthetic substances, when regularly consumed, potentially contribute to disease due to a toxic cellular environment. The introduction of synthetic molecules into the Earth’s environment has created a toxic soup in the air, water and soil of the planet. The microplastic issue is just one aspect of the global pollution problem caused by humans! Life in many ways is now marinating in toxins.

What can I do about microplastics?

Avoid products that include plastics, especially microplastic particles. Most common brands of face scrubs, such as Neutregena and other Johnson & Johnson products, contain tiny plastic beads acting as abrasives. Skip those types of products, read the ingredients and avoid chemicals like Polyethylene (PE). This will help to reduce the amount of plastics being flushed through water treatment facilities which eventually end up in our water systems and potentially in wildlife.

Purchase natural fibers derived from plants when possible (e.g. cotton, bamboo or hemp).

Remember to bring—and use—reusable grocery bags. If you don’t have a good alternative to plastic bags, you can reduce your impact by reusing your “single use” plastic as many times as possible. Even using plastic bags as trash can liners is a valid way to reuse them and slightly reduce your environmental impact.

When purchasing anything, choose merchandise with minimal packaging and with the least amount of plastics as possible. Remember that you’re not only reducing your use of plastic by being selective but you’re also voting with your wallet – telling brands that excessively use plastic that you’re going to find an alternative.

All of our individual actions add up over time. Don’t forget that your daily actions DO make a difference!

Bans, Taxes, and Fees: The Politics of Plastic Bags

It has become common practice around the world to use disposable plastic bags to assist us in our every day lives. Out of mere convenience and utility, the plastic bag has become a go-to resource for in-store purchases, big or small.

However, in light of current of research pointing to the environmental impacts of plastic bags, many cities, states, and countries have sought to change this through regulation and legislation.

Impact of Plastic Bags on The Environment

According to the Earth Policy Institute, 1 trillion plastic bags are used worldwide each year. For every 100 billion plastic bags being made, 12 million barrels of crude oil are being allocated to their production. Equivocally, a car could drive for one mile on the energy required to produce 12 plastic bags.

And most of these are not being recycled. Instead, they are ending up in lakes and oceans, on beaches, in landfills, and even in our own food chain. This is because rather than breaking down over time, they are simply breaking into smaller and smaller pieces.

Legislation on Plastic Bags Around the World

Due to the mounting environmental concerns, legislation is being passed across the globe to mitigate the manufacture and use of disposable plastic bags. The first plastic bag law went into effect in Denmark in 1993, which implemented a tax on the use of plastic bags. Ireland introduced the Bag Tax in 2002, reducing plastic bag use by 90 percent.

Bangladesh became the first country to outright ban thin plastic bags in 2002 after two major floods in 1989 and 1998, which were magnified due to plastic bag waste blocking drains and sewers.

China began enforcing plastic bag bans and regulations in 2008, just before hosting the 2008 Summer Olympics. This eventually caused their largest plastic bag factory to shut down.

Other countries that have enacted regulations on plastic bags include Kenya, the Phillippines, Australia, Argentina, Brazil, and more.

Legislation on Plastic Bags in the U.S.

As of 2016, legislation regarding plastic bag bans spanned 23 states and included 77 bills. Notable city-wide bans are now enforced in Austin, Chicago, Seattle, and Cambridge, Massachusetts.

In 2014, California became the first U.S. state to ban disposable plastic bags statewide. Since then, a de facto statewide ban on plastic bags has been enforced in Hawaii, and the District of Columbia has passed a law banning the distribution of disposable, non-recyclable plastic bags.

However, many states in the U.S. have passed legislation prohibiting regulations on disposable plastic bags. Preemptive legislation that prevents cities, towns, or counties from regulating the sale and distribution of plastic bags is enforced in nine different U.S. states, including Arizona, Michigan, Florida, and Wisconsin.

What you can do about plastic bags…

The ban on disposable plastic bag use is gaining momentum and there are many ways you can contribute to this movement.

The most effective way to impose change is by writing your state representative. It is the job of your legislators to pass laws based on the values of their constituents. Voice your opposition to disposable plastic bags directly to those who can enact change.

In addition to directly contacting your representative, you can also make your voice heard through one of the many campaigns started to ban plastic bags, such as Greenpeace or Clean Up (The Project).

Sometimes the politics behind such a significant change can seem daunting. If you’re looking to promote change on a more local level, contact your local grocer to express your concern.

And finally, bring your own bag! By bringing your own bag to the store with you, you are easily able to say “No, thank you,” to plastic disposable bags when offered. Just because they are not legally banned in your city or state, doesn’t mean you have to use them.

The Environment This Week – September 17-24

The major trend from this week’s environmental news is no new trend at all. Those who are most effected by climate change are the smallest contributors to it. Those who are the biggest contributors are being asked to pony up, but as we already know, most of them will be getting off scot free.

Here’s what you need to know:

Trump rethinking stance on Paris Agreement?

Bloomberg news reported that the US is softening their stance on the Paris Agreement. In a recent meeting of 30+ countries discussing the climate accord, the EU climate chief Miguel Arias Canete, said that US wants to reingage the agreement from within rather than fully withdrawling.

The Whitehouse was quick to refute this… through Twitter of course:

Trump announced the US withdrawl from the Paris Climate Agreement in June.

But I wouldn’t be surprised if he reneged on his stance here too. He seems to have already given up on his party after their failure to repeal Obomacare and in an interview just last week Trump said “the wall will come later”.

 

Irma and Harvey call for a reality check

Scientific models are really really good. We can predict stuff like hurricane direction and intensity. Irma and Harvey – case in point. Why don’t we trust models to predict how our climate will change?

Models aren’t always right… But many of them are damn close.

Scientists have compared climate model predictions from the past, with actual data, and guess what? They are surprisingly accurate.

Blue Line: Prediction | Black Line: Data

Bottom Line: Climate models are accurate. The repercussions of climate change are devastating: intensified weather such as heat waves, flooding, droughts, and yep, you guessed it… hurricanes.

So while people evacuated and took cover based on weather predictions, a changing climate isn’t imminent enough for us to take action. It’s just so much easier to ignore science when it’s inconvenient.

 

300+ Companies Commit to Climate Targets

At the launch of Climate Week NYC today companies from around the world are announcing their commitment to carbon emissions reductions. The number of companies making such commitments has doubled since this event last year.

Climate Week NYC is an annual meeting of business, city, and state leaders. At the gathering they share why and how they are embracing a clean economy.

At least 50 of the companies attending are head quartered in the US.

Why is this important?

Companies are warming up to the fact that climate change is real and in order to have long term success they will need to adapt. The fact that the number of companies taking at least some action has doubled since last year shows some momentum.

How important is it?

As with many trends in business, once the early adopters show success from their new practices the rest will fall in a landslide. The private sector has an enormous influence on climate change and if some of the biggest corporations start acting it can have huge repercussions. Unfortunately, big business, like the giant it is, moves slow. I don’t expect to see any major reductions realized soon, but they may stack up quickly when they do.

 

Cities suing big oil

San Francisco and Oakland filed lawsuits against five oil and gas companies this week. SF expects the cost of climate change mitigation for the city to be about $5 billion this century as it responds to rising sea levels. Along with Oakland, Imperial Beach, Marin County and San Mateo County, San Francisco say the cost of global warming should be borne by those most responsible for it.

From the 3P: On Tuesday, both cities filed suits against a five oil and gas companies (Bay Area-based Chevron, ConocoPhillips, ExxonMobil, Shell and BP) that they say knew they were creating a climate crisis as early as the 1990s and “launched a multi-million-dollar disinformation campaign to deny and discredit what was clear even to their own scientists: global warming is real and their product is a huge part of the problem.”

 

Unfair Again: more hurricanes punishing the smallest contributors to climate change

Another storm, hurricane Maria, has come in quick succession of Irma and Harvey. This category 4 hurricane is the worst to hit Puerto Rico in 80 years.

Meanwhile, Barbuda is still reeling from Irma – the entire island was evacuated and 98% of buildings were destroyed. The Prime Minister of Antigua and Barbuda appealed to the larger nations of the UN for support this week.

In his speech, Gaston Browne noted that his country and other small nations are disproportionately impacted by the effects of global warming and larger nations should play a larger role in aiding them.

It seems logical that the nations contributing most to climate change should be doing the most to fix it. Unfortunately, politics are not very logical. Not only are countries like the US not leading the way to fix it, they’re also highly unlikely to help smaller countries develop the infrastructure needed to protect themselves from sea level rise and more intense storms.

 

Trump Pulls Out of Paris Agreement… The World Reacts

This week Trump announced that the US would be pulling out of the Paris Agreement… and some of the most influential people immediately responded. Here’s what they had to say:

Elon Musk

After staying on as Trump’s council despite their differences in opinion, Elon Musk has now stepped down. It seems that Trump’s decision to pull the US out of the Paris Agreement was the last straw.

Mayor of Pittsburgh – Bill Peduto

After Trump stated that he was elected to serve the people of Pittsburgh, not the people of Paris in his Paris pullout announcement, the mayor of Pittsburgh released a statement to clarify his stance: The city of Pittsburgh will follow the guidelines of the Paris Agreement.

Arnold Schwarzenneger

Good ol’ Arnold released a video directly addressing Trump to uphold his responsibility to protect the American people, part of which includes the health impact from pollution.

French President – Emmanuel Macron

Climate change is global… everyone is impacted and everyone needs to do their part.

 

Weekly Eco Summary: New High Score!

Feb 12 – 19

The Environment: Last week in short:

Last week researches published a study stating that we are changing the climate 170 times faster than natural forces. An unprecedented heatwave in Australia may be a hint of the extreme weather trends we can expect moving forward… and air pollution has become so bad in some cities that he health benefits of exercising outdoors are trumped by the negative impact of the pollution.

Oh ya, we’ve also reached the lowest lows – pollutants have been discovered in one of the most remote places on Earth: in the Marianas trench.

As our impact has reached a new high, politics continues to dip lower. This week Scott Pruitt was officially voted in by the senate to be the head of the EPA… Pruitt has a long history of suing the EPA and is expected to roll back the EPA’s enforcement efforts, further

Environmental highlights from last week:

Researchers quantified the impact humans have on the earth. It’s 170 times faster than natural forces.

Natural astronomical and geophysical forces such as Earth’s orbit around the sun, gravitational interactions with other planets, the sun’s heat output, colliding continents, volcanoes, and evolution, have driven a rate of change of 0.01 degrees Celsius per century.

Greenhouse gas emissions caused by humans over the past 45 years have increased the rate of temperature rise to 1.7 degrees Celsius per century, dwarfing the natural background rate. [Read More]

 

Australia’s heat wave has set new records (47 C, 116 F) for the Sydney suburb Penrith. Almost every Australian capital city experienced higher-than-average temperatures this January. Meanwhile, the Australian politician Scott Morrison brandished a lump of coal at parliamentary question time, declaring coal to be the future of Australian energy. [Read More]

 

Air pollution has reached a new high. New research suggests that in at least 15 cities, air pollution has now become so bad that the danger to health of just 30 minutes of cycling each way outweighs the benefits of exercise altogether. [Read More]

 

As Trump plans to pull the US out of the global climate agreement, Sweden vows to eliminate greenhouse gasses by 2045.

The law is expected to take effect in 2018. It would require the domestic transport sector to decrease its emissions by 70 percent by 2030. Domestic emissions are to be slashed by 85 percent, with the government setting new climate goals every four years. Any remaining emissions would be negated by investing in sustainable development projects abroad or planting trees to sequester carbon within the country. [Read More]

 

‘Extraordinary’ levels of pollutants were discovered in the Marinas trench. This 10km deep trench in the pacific ocean is considered to be one of the most remote places on earth… but not untouched. Scientists recently discovered the presence of manmade pollutants in crustaceans during an expedition. This discovery is important because it shows the extent of dispersal of known toxic chemicals. [Read More]

 

Things I didn’t know were a problem but are being solved…

Synthetic textiles, such as fleece jackets, send tiny plastic fibers into wastewater after washing. These bits eventually make their way into rivers, lakes and our oceans, where they pose health threats to plants and animals.

Two dudes came up with a solution: a mesh laundry bag, that goes into the washing machine. The bag captures shedding fibers as clothes are tossed and spun, preventing the fibers from escaping. [Read More]

 

Chemicals in sunscreen can damage coral reefs, and one Hawaiian senator has proposed a bill to ban sunscreens containing oxybenzone and octinoxate in Hawaii. [Read More]

 

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