ENN
Environmental News Network -- Know Your Environment
Las diferentes tecnologías bajas en carbono, desde la energía eólica y solar, hasta la captura y el secuestro de carbono fósil (CCS), difieren mucho en lo que respecta a las emisiones indirectas de gases de efecto invernadero en su ciclo de vida. Este es el resultado de un nuevo estudio exhaustivo realizado por un equipo internacional de científicos que ahora se publica en la revista Nature Energy
A new UCLA-led study reinforces the importance of collaboration in assessing the effects of climate change.
The research, published today in the journal Proceedings of the National Academy of Sciences, offers new insights about previously unknown factors affecting Greenland’s melting ice sheet, and it could ultimately help scientists more accurately predict how the phenomenon could cause sea levels to rise.
Different low carbon technologies from wind or solar energy to fossil carbon capture and sequestration (CCS) differ greatly when it comes to indirect greenhouse gas emissions in their life cycle. This is the result of a comprehensive new study conducted by an international team of scientists that is now published in the journal Nature Energy. Unlike what some critics argue, the researchers not only found that wind and solar energy belong to the more favorable when it comes to life-cycle emissions. They also show that a full decarbonization of the global power sector by scaling up these technologies would induce only modest indirect greenhouse gas emissions – and hence not impede the transformation towards a climate-friendly power system.
North Atlantic right whales are one of the world’s most critically endangered large whales, but if you’re lucky, you can still see them: a mother nursing her newborn in the warm waters off the Georgia or Florida coast, their only known calving grounds; right whales socializing and feeding in the fertile waters of Cape Cod Bay, sometimes within sight of shore; whales — black, 50 feet long, and weighing some 100,000 pounds — rising through the water in the Bay of Fundy or the Gulf of St. Lawrence, the northern end of their thousand-mile-plus migration route.
With the power-conversion efficiency of silicon solar cells plateauing around 25%, perovskites are now ideally placed to become the market’s next generation of photovoltaics. In particular, organic-inorganic lead halide perovskites offer manufacturing versatility that can potentially translate into much higher efficiency: studies have already shown photovoltaic performances above 20% across different solar cell architectures built with simple and low-cost processes.
A single plastic carrier bag could be shredded by marine organisms into around 1.75million microscopic fragments, according to new research.
