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News about Climate Change and our Planet

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The sad fate of krill in the Southern Ocean

Krill in the Southern Ocean are projected to decline about 30% this century, due to human-driven climate change. But natural variability also plays a role. A new study tries to tease out the difference.

The post The sad fate of krill in the Southern Ocean first appeared on EarthSky.

Is the Controlled Shrinking of Economies a Better Bet to Slow Climate Change Than Unproven Technologies? – InsideClimate News

Existing plans to limit global warming rely too much on “increasingly unrealistic assumptions” that societies will be able to remove huge amounts of carbon from the atmosphere while simultaneously maintaining incessant economic growth over the next 50 years, according to…

Greenhouse gas data deep dive reaches new level of ‘reasonable and true’

(University of Illinois College of Agricultural, Consumer and Environmental Sciences) For the most accurate accounting of a product’s environmental impact, scientists look at the product’s entire life cycle, from cradle to grave. It’s a grand calculation known as a life cycle assessment (LCA), and greenhouse gas emissions are a key component.For corn ethanol, most greenhouse gas emissions can be mapped to the fuel’s production, transportation, and combustion, but a large portion of the greenhouse gas calculation can be traced right back to the farm.

Surprising spider hair discovery may inspire stronger adhesives

(Frontiers) A recent study by the open access publisher Frontiers shows the first evidence that the individual hair-like structures that form spiders’ adhesive feet are far more diverse than expected. By looking at a sample set of these hairs, researchers have found that they have varied shapes as well as attachment properties. Understanding how spiders climb a wide range of surfaces may help scientists design new and better adhesives.

Salamanders have a secret to survive drought, heat waves, and climate change – Vox.com

This story is part of Down to Earth, a Vox reporting initiative on the science, politics, and economics of the biodiversity crisis. A decade ago, a team of salamander researchers made a dire prediction: that climate change would make much…

Rutgers Falsely Claims Sea-Level Rise Is Accelerating On East Coast

A recent Rutgers University press release says the rate of sea-level rise in the 20th century along much of the U.S. Atlantic coast was the fastest in 2,000 years, with southern New Jersey recording the fastest rate of rise. Real-world data…

Predicting the spread of invasive carp using river water flows

(University of Missouri-Columbia) Researchers from the University of Missouri and the United States Geological Survey are using a grant from the USGS Aquatic Invasive Species Competitive Grants Program to develop a 3D model to better predict how the variable dynamics of river water flows — currents and water turbulence — influence the spread of invasive carp throughout the U.S. Invasive carp reproduce in rivers, and can lay thousands of eggs that can drift for miles in river flows before hatching.

Stoneflies: Youth influences adulthood

(University of Bonn) In the majority of insects, metamorphosis fosters completely different looking larval and adult stages. This “decoupling” of life stages is thought to allow for adaptation to different environments. Researchers of the University of Bonn now falsified this text book knowledge of evolutionary theory for stoneflies. They found that the ecology of the larvae largely determines the morphology of the adults by investigating 219 earwig and stonefly species at high-resolution particle accelerators.

Global warming may have already passed irreversible tipping point – Al Jazeera English

After the biggest-ever expedition to the Arctic, scientists warn point of no return on global warming may have already been reached. Global warning may have already passed an irreversible tipping point, the scientist who led the biggest-ever expedition to the…