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Scientists strive for negative emissions

A Greener Life

Human activity adds more than 50 gigatons of carbon dioxide to the atmosphere each year. New Solid Carbon technology might be able to lock climate-warming carbon dioxide below ocean bedrock. Basalt is a porous rock formed from cooling lava. Large-scale solutions are urgently needed.

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Delayed harm and the politics of climate change, reconsidered

Legal Planet

But what happens when we achieve the goal of zero carbon dioxide emissions from human actions? Does the climate keep warming, stay the same, or even cool? It turns out this is a critical question for understanding what carbon budgets we have in terms of emissions, if we seek to meet temperature thresholds like 2 degrees Celsius.

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A Dangerous Disruption

Legal Planet

Last week, MIT’s “Technology Review” reported that a small startup firm is proposing to spray reflective aerosols in the stratosphere commercially as a climate corrective. They say they have thus far launched two small weather balloons, which each released a few grams of sulfur dioxide gas (SO 2 ) in the stratosphere.

Cooling 346
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Glossary of Greenhouse Gas Terms

Greenbuilding Law

Atmosphere The gaseous envelope surrounding the Earth. The dry atmosphere consists almost entirely of nitrogen (78.1% volume mixing ratio), together with a number of trace gases, such as argon (0.93% volume mixing ratio), helium, radiatively active greenhouse gases such as carbon dioxide (0.035% volume mixing ratio), and ozone.

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Ask a Scientist: Gas Plants Disproportionately Harm Marginalized Communities

Union of Concerned Scientists

Responsible for 12 percent of all US global warming emissions from human activities, methane traps significantly more heat per molecule than carbon dioxide, making it 86 times more harmful for the first 20 years after it is released into the atmosphere.

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A Quick Science Refresher on Greenhouse Gas

Greenbuilding Law

But make no mistake, the larger issue is the regulation for the first time of GHGs (including carbon) which will literally change the structure of the global economy, our political order, market capitalism and even our biological selves.”. Simply put, gases that trap heat in the atmosphere (. emission trends. But reduce what to what?

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Back in Black: Creating positive changes by focusing on a short-lived pollutant

HumanNature

When fuels are burned to create energy in a process called combustion, black carbon along with carbon monoxide and other compounds are created because there is not enough oxygen in the atmosphere for the reaction to go to completion. But there’s a bright side to our black carbon problems: it doesn’t live very long.