The German National Academy of Sciences Leopoldina and the German Council for Sustainable Development (RNE) have published a joint position paper presenting paths to climate neutrality by 2050. In it, the Leopoldina and the RNE highlight options for action to effect the changes needed within society, at political level and in the business world, in view especially of the urgency and the historic dimensions of the transformation we face.
University of Rochester researchers describe the first demonstration of highly chirped pulses created by a using a spectral filter in a Kerr resonator, enabling them to widen a laser pulse wavefront by separating the beam's colors. The chirped pulses remain stable even with more than 90% energy loss.
Nitrogen from agriculture, vehicle emissions and industry is endangering butterflies in Switzerland. The element is deposited in the soil via the air and has an impact on vegetation -- to the detriment of the butterflies, as researchers at the University of Basel have discovered.
Scientists find the impact of anthropogenic forcing on drought risk over Southeast Asia has already exceeded internal climate variability in the late 20th and they call for actions to reduce anthropogenic aerosol loading and greenhouses gases emissions.
Marine-terminating glaciers may be less vulnerable to rapid and irreversible collapse than previously suggested, according to a new study, which finds that ice cliff collapse is limited by upstream thinning of the ice sheet and how quickly calved icebergs and sea-ice float away.
Current approaches for planning relocation for potentially millions of people affected by climate change are 'woefully inadequate' and risk worsening societal inequities, experts wrote in a policy perspective on June 17 in Science. Policymakers and scientists need to rethink how they work together to develop, communicate and carry out relocation plans so that relocating communities can thrive, though it relies on a transformation in how science is used, tools are deployed, and stakeholders are engaged.
As demand for electricity rises and climate change brings more frequent and extreme storms, residents in rural and suburban communities must have access to the minimal electricity they need to survive a large, long-duration (LLD) power outage.
Weddell seals, the southernmost born mammal, are known as champion divers. But they don't begin life that way. Cal Poly researchers examined the development of diving behavior in Weddell seal pups and found that they time their dives with their mother but likely do not learn to forage at that time. Instead, they focus their early efforts on learning to swim and navigate under the sea ice.
When animals are hot, they eat less. This potentially fatal phenomenon has been largely overlooked in wild animals, explain researchers from The Australian National University (ANU).
Conservationists have long warned of the dangers associated with bears becoming habituated to life in urban areas. Yet, it appears the message hasn't gotten through to everyone. News reports continue to cover seemingly similar situations -- a foraging bear enters a neighbourhood, easily finds high-value food and refuses to leave. The story often ends with conservation officers being forced to euthanize the animal for public safety purposes.