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Study finds methane emissions from coal mines ~50% higher than previously thought

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The results have important implications for Earth’s climate because methane is about 25 times more powerful than carbon dioxide when it comes to warming the planet over a long period. In addition to coal mining, other major sources of methane emissions globally include wetlands, agriculture, and oil and gas facilities.

Coal 321
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Ice core data show why air pollution is dropping more slowly in US and Western Europe despite lower sulfur emissions

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Despite these successes, sulfate levels in the atmosphere have declined more slowly than sulfur dioxide emissions, especially in wintertime. This unexpected phenomenon suggests sulfur dioxide emission reductions are less efficient than expected for cutting sulfate aerosols. These trends are expected to continue.

Pollution 221
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ArcelorMittal Tubarão, Brazil first ResponsibleSteel steelmaking site in Latin America

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Launched in 2015, ResponsibleSteel sets global standards for sustainability performance and promotes the certification of steel chain companies through a network of independent certification bodies. Climate Change and Greenhouse Gas Emissions. Noise, Emissions, Effluents and Waste. Water Stewardship.

Brazil 259
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UCLA/LLNL study concludes most climate models overestimate increase in global precipitation due to climate change

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UCLA and Lawrence Livermore researchers have found that most climate models overestimate the increase in global precipitation due to climate change. This comparison with observations allowed us to see quite clearly that most models underestimate the increased absorption of sunlight as water vapor increases.

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Study measures the effect of regional change in clouds caused by ships’ emissions; masking GHG warming

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In climate models, if you simulate the world with sulfur emissions from shipping, and you simulate the world without these emissions, there is a sizable cooling effect from changes in the model clouds due to shipping. The calculated concentration of cloud droplets without emissions along the shipping route (yellow line).

Emissions 223
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Perspective: The Role of Offsets in Climate Change Legislation

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An offset is a measurable reduction, avoidance, or sequestration of GHG emissions from a source not covered by an emission reduction program. In this way, offsets would complement the more traditional emissions trading that can occur between two covered sources. what would have happened anyway).

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US and China jointly announce GHG reduction targets; US to cut net GHG 26-28% by 2025, China to peak CO2 by ~2030

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US President Barack Obama said the US will cut net greenhouse gas emissions in the US by 26-28% below 2005 levels by 2025. Together, the US and China account for more than one third of global greenhouse gas emissions. The US and China jointly announced greenhouse gas (GHG) reduction targets. per year on average between 2020 and 2025.

China 300