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Environmental News Network -- Know Your Environment
The world’s oldest algae fossils are a billion years old, according to a new analysis by earth scientists at McGill University. Based on this finding, the researchers also estimate that the basis for photosynthesis in today’s plants was set in place 1.25 billion years ago.
As a short-lived climate forcer, black carbon aerosols in the atmosphere play a vital role in climate change by absorbing solar radiation and altering the formation, lifespan and albedo of clouds. It also provides "seed" for haze formation in urban/regional scale. In northern China, open biomass burning (OBB), such as straw burning after harvesting, is one of important sources of refractory black carbon (rBC). OBB emits both soot particles and substantial amount of semi-volatile organic matters, both of which will undergo a very complicated mixing and evolution processes in the atmosphere to change their ability to form cloud condensation nuclei.
En el próximo siglo los recursos eólicos podrían disminuir en muchas regiones del hemisferio norte y podrían aumentar drásticamente en algunas regiones de puntos críticos del sur, según un estudio realizado por investigadores de la Universidad de Colorado en Boulder. El primer estudio de este tipo que predice cómo la energía eólica mundial puede cambiar con el cambio climático aparece hoy en Nature Geoscience.
Last month, three MIT materials scientists and their colleagues published a paper describing a new artificial-intelligence system that can pore through scientific papers and extract “recipes” for producing particular types of materials.
Los modelos de computadora que predicen las sequías no están hechos solo para que los científicos puedan decir "te lo dije" cuando tu lago favorito se agote. Desde la agricultura hasta la infraestructura y el turismo, los principales sectores de la economía necesitan información sobre las condiciones climáticas que se avecinan.
The amount of snow falling in Alaska’s Denali National Park, home to North America’s tallest mountain, has more than doubled over the past 150 years, according to a new study.
