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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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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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Climate Expert: Don't Call It Geoengineering

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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. C above pre-industrial levels.

Climate 143
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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 134
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Ensuring Underwater Robots Survive in Hot Tropical Waters

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“We’re only just starting to get a feel for what marine autonomous systems can do—not just for our tropical marine waters but in general,” she says. There are grand challenges no one can solve right now, like dealing with ocean pollution and the impacts of climate change.”

Water 101
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Researchers demonstrate electrochemical synthesis of ammonia from air and water under mild conditions

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is well known that some higher plants can synthesize ammonia or its derivatives directly from air and water at room temperature. To the best of our knowledge, there is no report on artificial synthesis of ammonia direct from air and water. Scientific Reports 3, Article number: 1145 doi: 10.1038/srep01145. —Lan et al.

Water 268
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UMD-led study: road salts and other human sources are threatening world’s freshwater supplies

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Kaushal and his team named these cascading effects of introduced salts Freshwater Salinization Syndrome, and it can poison drinking water and cause negative effects on human health, agriculture, infrastructure, wildlife and the stability of ecosystems. In the built environment, salts can degrade roadways and infrastructure.

Supplies 195