carbon dioxide

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Inhalers' Climate Impact Rivals That of Half a Million Cars

Vast majority of these emissions are traced to common metered-dose inhalers, study finds

(Newser) - A new study highlights an overlooked contributor to greenhouse gas emissions: inhalers for asthma and chronic obstructive pulmonary disease, or COPD, reports CBS News . Published in the Journal of the American Medical Association , the research estimates that US inhaler use produced about 24.9 million metric tons of carbon...

Trees in the Amazon Are Getting Bigger
Trees in the Amazon
Are Getting Bigger
new study
Sep 25, 2025 12:37 PM CDT

Trees in the Amazon Are Getting Bigger

Average size increases, a somewhat surprising result of climate change

(Newser) - A study out of the UK adds a new wrinkle to how climate change will affect the Amazon rainforest: It turns out that trees there are getting bigger. Researchers at the University of Cambridge and the RAINFOR Amazon Forest Inventory Network found that the average tree size has increased...

Sharks Could Lose Their Teeth to Ocean Acidity
Sharks Could Lose Their
Teeth to Ocean Acidity
NEW STUDY
Sep 7, 2025 1:30 PM CDT

Sharks Could Lose Their Teeth to Ocean Acidity

Study warns rising acidity could erode sharks' hunting edge, transform ecosystems

(Newser) - Shark teeth might be the next casualty in the climate change saga: A new study suggests ocean acidification could leave these apex predators with a serious dental crisis. Researchers found that as oceans absorb more carbon dioxide and their pH levels drop, shark teeth start to corrode—potentially faster...

First-of-Its-Kind Satellite to 'Weigh' All the Wood in Forests

ESA's Biomass has a job that fits its name

(Newser) - Mapping the world's forests, said to include some 1.5 trillion trees, is a big, big job—one that will be made a whole lot easier with Europe's newly launched satellite. The European Space Agency on Tuesday launched Biomass, a satellite with a 40-foot-wide, umbrella-shaped antenna, which has...

On Ships' Carbon Emissions, a 'Historic Decision'

World's first global tax in shipping industry is scheduled to start in 2028

(Newser) - Amid growing concerns over climate change, the International Maritime Organization is poised to introduce the world's first global carbon tax on shipping emissions. The AP reports that the International Maritime Organization plans to introduce the fee by 2028, in which nations would pay $100 per ton of carbon...

A Flip in the Arctic Tundra: It's Now a Carbon Dioxide Source

Finding comes in NOAA's annual Arctic Report Card

(Newser) - Forget what you learned in grade school science class: The Arctic tundra is no longer the carbon sink it once was. "The tundra, which is experiencing warming and increased wildfire, is now emitting more carbon than it stores, which will worsen climate change impacts," NOAA Administrator Rick Spinrad...

This Powder Could Help Save Us From Global Warming
Revolutionary
Powder Sucks Up
CO2 Like a Tree
NEW STUDY
Oct 24, 2024 8:39 AM CDT

Revolutionary Powder Sucks Up CO2 Like a Tree

COF-999 could fuel direct air capture strategy to fighting climate change

(Newser) - To limit global warming to 2 degrees Celsius above preindustrial levels, we need to limit carbon dioxide in the atmosphere to below 450 parts per million, per the Los Angeles Times . Given there are around 423 ppm in the atmosphere and more being added all the time, this will mean...

Plane Emissions Were Nothing Compared to Canada Wildfires
Canada Wildfires Were
an Emissions Firehose
NEW STUDY
Jun 30, 2024 7:31 AM CDT

Canada Wildfires Were an Emissions Firehose

Fires produced more carbon dioxide than airplanes, India's burning of fossil fuels: report

(Newser) - The devastating Canadian wildfires of last year were fueled by climate change and fueled climate change right back. The fires emitted more heat-trapping carbon dioxide than did India in burning fossil fuels, according to a study update published Thursday in Global Change Biology . "The update is not peer-reviewed, but...

Critics See Danger in CO2 Pipelines: 'Zombie' Leaks

'The Lever' looks at safety concerns after two leaks led to scary symptoms for residents

(Newser) - Part of the White House plan to fight climate change involves the construction of carbon dioxide pipelines across the country—part of an experimental "carbon capture and storage" strategy. In short, the idea is "aimed at sequestering carbon emissions from power plants, sending it through pipelines, and injecting...

Carbon Dioxide Levels Increase at Record Pace

Mauna Loa observatory records highest-ever annual jump

(Newser) - The Mauna Loa observatory in Hawaii has been measuring carbon dioxide in the atmosphere for more than six decades, and it just recorded the biggest annual increase on record.
  • The jump: The March reading at the National Oceanic Atmospheric Administration lab was 4.7 parts per million higher than last
...

Supreme Court Hands Loss to Green Advocates

Justices limit EPA's ability to limit emissions from power plants

(Newser) - In a blow to the fight against climate change, the Supreme Court on Thursday limited how the nation's main anti-air pollution law can be used to reduce carbon dioxide emissions from power plants. By a 6-3 vote, with conservatives in the majority, the court said that the Clean Air...

Carbon Dioxide in Atmosphere Hits Pre-Human Levels

At this rate, damage from climate change will increase, experts say

(Newser) - The amount of heat-trapping carbon dioxide in the atmosphere has shot past a key milestone—more than 50% higher than pre-industrial times—and is at levels not seen since millions of years ago when Earth was a hothouse ocean-inundated planet, federal scientists announced Friday. The National Oceanic and Atmospheric Administration...

Scientists See Evidence of Troubling Shift in Amazon
Scientists See Evidence
of Troubling Shift in Amazon
new study
Jul 15, 2021 12:28 PM CDT

Scientists See Evidence of Troubling Shift in Amazon

Parts of the rainforest are now emitting more carbon dioxide than they absorb

(Newser) - Researchers have been warning about an imminent "tipping point" in the Amazon rainforest for a while now, and a new study suggests the moment has arrived for swaths of the region. The study in Nature finds that parts of the rainforest are now emitting more carbon dioxide than they...

Carbon Dioxide Levels Reach an Unwanted Record
Carbon Dioxide Levels
Reach an Unwanted Record 
new study
Jun 7, 2021 10:00 AM CDT

Carbon Dioxide Levels Reach an Unwanted Record

Atmosphere is at 419ppm, despite a drop in emissions during the pandemic

(Newser) - The pandemic and its related shutdowns caused a notable drop in the emission of greenhouse gases. But that did little to put a dent in the growing concentration of carbon dioxide already in the atmosphere, reports the Washington Post . The new numbers are in, and they're record-breaking in a...

Organic Meat Production Is No Better for the Planet
Study: Meat Prices
Should Jump 146%
new research
Dec 23, 2020 12:31 PM CST

Study: Meat Prices Should Jump 146%

If they're to cover their associated climate costs, that is

(Newser) - You're doing the planet no favors by eating meat that was produced organically, at least when it comes to greenhouse gas emissions—and whatever meat you're eating, it should cost much, much more than it currently does. That's the determination of a new analysis based on German...

Cops: Woman's Mask May Have Caused Crash

NJ police department walks back initial remarks after noting N95 mask could've led to accident

(Newser) - Police pointed to an odd possible cause of a single-car crash in New Jersey last week, though an "overwhelming response" on social media now has them pulling that back. ABC News reports cops responded to the scene of an accident Thursday in Lincoln Park and found a red car...

Environmentalists Alarmed Over Latest Amazon Data

Deforestation is at an 11-year high, Brazil says

(Newser) - Environmentalists are ringing alarm bells after Brazil released its latest data on the Amazon rainforest, CNN reports. According to the government, the rainforest lost nearly 3,800 square miles over 12 months through July 2019, marking an 11-year high in deforestation and a 29.5% increase over the year before....

20 Firms Are Behind 35% of Emissions
20 Companies
Have a Dirty Secret
new study
Oct 13, 2019 5:00 PM CDT

20 Companies Have a Dirty Secret

The Climate Accountability Institute says they're responsible for 35% of emissions

(Newser) - Fossil fuel companies emit greenhouse gases—we know. But a new analysis says 20 such companies are responsible for over a third of all greenhouse gas emissions since 1965, the Guardian reports. Conducted by Richard Heede, an authority at the Climate Accountability Institute, the study says 20 companies have released...

Why You Should Care About a Huge Peatland in Africa
It Turns Out Peat Is Way, Way
More Important Than You Knew
IN CASE YOU MISSED IT
Oct 6, 2019 10:25 AM CDT

It Turns Out Peat Is Way, Way More Important Than You Knew

If peatlands burn, the planet will suffer greatly

(Newser) - If you've never thought much about peat, that's understandable. An accumulation of partially decayed vegetation that can develop into a material more than 20 feet deep, peat covers just 3% of the Earth. But a lengthy article from National Geographic makes clear it's a powerhouse thanks to...

What's a Whale Worth? More Than You Might Think
What's a Whale Worth?
More Than You Might Think
new analysis
Sep 25, 2019 10:35 AM CDT

What's a Whale Worth? More Than You Might Think

Team of economists with the IMF do the math

(Newser) - Whales are actually cash cows, or so suggest economists with the International Monetary Fund. A team helmed by Ralph Chami took a look at the economic benefit provided by whales when it comes to carbon sequestration and ecotourism and arrived at a big figure: $2 million apiece. Their analysis hasn'...

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