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Study: 2/3 of aviation climate impact due to emissions other than CO2

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of the human-made climate impact; two-thirds of this impact are caused by emissions other than CO 2 , according to a new study by researchers in Europe and the US. The study was published in the journal Atmospheric Environment. This new study is based on a thorough review of a decade of research on aviation emissions.

Climate 448
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Cambridge study finds globalized economy making water, energy and land insecurity worse

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The first large-scale study of the risks that countries face from dependence on water, energy and land resources has found that globalization may be decreasing, rather than increasing, the security of global supply chains. This interconnectedness also increases the amount of risk at each step of a global supply chain.

Water 170
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Study finds climate impact of hydropower varies widely

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earlier post ), a new study by a team at Environmental Defense Fund finds that the climate impact of hydropower facilities varies widely throughout the world and over time, with some facilities emitting more greenhouse gases than those burning fossil fuels. They also estimated emissions caused by flooding the reservoir.

Climate 207
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MIT modeling study finds 52% of projected global population in 2050 will live in water-stressed areas

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A modeling study by researchers at MIT projects that 5 billion (52%) of the world’s projected 9.7 billion people in 2050 will live in water-stressed areas. The researchers also expect about 1 billion more people to be living in areas where water demand exceeds surface-water supply. billion living in developing countries.

MIT 281
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Study finds GHG methane offsets its warming ~30% and precipitation increase ~60% by short-wave absorption

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A new study by researchers from the University of California, Riverside and colleagues in the US and Europe has now found that methane short-wave absorption counteracts ~30% of the surface warming associated with its long-wave radiative effects. This in turn reduces the amount of water that evaporates. —Allen et al.

Escape 243
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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. Conveniently, this quantity can be measured from space, allowing the team to assess how well the models capture the physics controlling changes in global precipitation.

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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