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Environmental News Network -- Know Your Environment
Zilin Jiang from Technion — Israel Institute of Technology and Alexandr Polyanskii from the Moscow Institute of Physics and Technology (MIPT) have proved László Fejes Tóth’s zone conjecture. Formulated in 1973, it says that if a unit sphere is completely covered by several zones, their combined width is at least π. The proof, published in the journal Geometric and Functional Analysis, is important for discrete geometry and enables new problems to be formulated.
New research at the University of Waterloo could lead to the development of batteries that triple the range of electric vehicles.
The breakthrough involves the use of negative electrodes made of lithium metal, a material with the potential to dramatically increase battery storage capacity.
“This will mean cheap, safe, long-lasting batteries that give people much more range in their electric vehicles,” said Quanquan Pang, who led the research while he was a PhD candidate in chemistry at Waterloo.
The increased storage capacity, or energy density, could boost the distance electric vehicles are able to travel on a single charge, from about 200 kilometres to 600 kilometres.
The Thomas Fire burning north of Los Angeles in Ventura County, California is now the state’s fifth-largest wildfire on record. Less than 15 percent contained and moving west quickly, the fire is being fueled by dry conditions and strong winds. It is one of five wildfirescurrently burning in southern California.
The forests you see today are not what you will see in the future. That’s the overarching finding from a new study on the resilience of Rocky Mountain forests, led by Colorado State University.
Researchers analyzed data from nearly 1,500 sites in five states — Colorado, Wyoming, Washington, Idaho, and Montana — and measured more than 63,000 seedlings after 52 wildfires that burned over the past three decades. They wanted to understand if and how changing climate over the last several decades affected post-fire tree regeneration, a key indicator of forest resilience.
Moody's Investors Service, una de las principales agencias de calificación crediticia del mundo, advirtió a las ciudades y estados de EE. UU. que a menos que se preparen para el cambio climático, se podrían reducir sus calificaciones crediticias, dificultando la obtención de bonos a bajo interés.
The U.S. Naval Research Laboratory’s Marine Meteorology Division in Monterey, California, houses a team of scientists and engineers who work in conjunction with the lab’s broader scientific community to provide the fleet with the most accurate weather forecasts possible.
