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DLR: cleaner aircraft emissions reduce the climate impact of contrail cirrus

Green Car Congress

Fewer soot particles in the exhaust stream of aircraft reduces the formation of ice crystals and therefore the climate impact of the resulting contrail cirrus. The results are published in an open-access paper in the Nature Partner Journal (npj) Climate and Atmospheric Science. Burkhardt et al. —Ulrike Burkhardt.

Climate 278
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Climate Expert: Don't Call It Geoengineering

Cars That Think

The leaders of the world have just returned from the UN's latest climate change summit, COP26 , in which the countries that have signed on to the Paris Agreement upped their commitments to fight climate change. C by the year 2100 , according to Climate Action Tracker. C above pre-industrial levels. In 2015, the U.S.

Climate 141
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How Engineers Can Help Protect Earth From Worsening Climate Change

Cars That Think

The day reminds us of the need to protect our planet and its ecosystems against the worsening climate crisis. The climate crisis is threatening people across the world, as well as every species of animal and plant life. Climate change is a global societal crisis that is causing devastating consequences.

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Pilot Project Sends Kelp–and Carbon–to the Seafloor

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Last January, in the waters off Cebu City in the Philippines, researchers first deployed a huge flexible ring seeded with seaweed and spanned by spokelike ropes and tubes. Every nightfall, cranks mounted on a floating platform lower the ring 25 meters below the surface to expose the seaweed to cooler, more nutrient-rich water.

Carbon 120
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UMD-led study: road salts and other human sources are threatening world’s freshwater supplies

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But a new study led by Sujay Kaushal of the University of Maryland warns that introducing salt into the environment—whether it's for de-icing roads, fertilizing farmland or other purposes—releases toxic chemical cocktails that create a serious and growing global threat to our freshwater supply and human health. Increasing Cl ?

Supplies 195
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Researchers demonstrate electrochemical synthesis of ammonia from air and water under mild conditions

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Globally 131 million tons of ammonia were produced in 2010. Globally 245 million tons of CO 2 were released by the ammonia industry in 2010 equivalent to about 50% of the UK CO 2 emissions (495.8 is well known that some higher plants can synthesize ammonia or its derivatives directly from air and water at room temperature.

Water 268
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Stress Monitors for Plants Can Spot Dehydration

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This article is part of our exclusive IEEE Journal Watch series in partnership with IEEE Xplore. This information could, for example, make it simpler for plant phenotyping researchers to compare how different plants respond to water shortages, helping those researchers develop drought-tolerant crops.