Recently scientists from the Zoological Society of London and Yale University assessed the world's 9,993 bird species according to their evolutionary distinctiveness and global extinction risk. At number three on the list is the Critically Endangered California condor (Gymnogyps caliÂfornianus) - weighing as much as 25 pounds, standing over four foot tall, with a wingspan of almost 10 feet, it is the largest land bird in North America.
Read more ...
Extraordinary co-operation by sociable weavers, which work together to build the largest nests in the world, is motivated by family ties, say scientists.
New research, published in Ecology Letters, says the birds, which are found throughout southern Africa, are more likely to maintain the communal part of the nest if they have relatives living nearby.
Read more ...
A federally funded scientific study on regional seagrass health recently released by The Nature Conservancy points to nitrogen pollution — from sewage and fertilizers — and warmer water temperatures as the killer threats to seagrasses throughout the coastal waters of southern New England.
Seagrass is vital habitat for fish and shellfish and is important for water quality.
Read more ...
Scientists at Stanford University recently unveiled a new modeling program that can predict the response of the environment to the land-use changes of human communities. Using their model, they found that natural resources can support humanity – up to a certain point. They recently published their findings in the journal Environmental Modelling & Software.
Read more ...
Como parte del Plan de Acción Climática de la Presidencia de EEUU, "Estrategia para Reducir las Emisiones de Metano", la Agencia de Protección Ambiental de EE.UU. (EPA) propone cambios a las normas de aire para nuevos residuos sólidos urbanos (RSU) en confinamientos. Estos cambios requerirÃan ciertos confinamientos adicionales para capturar los gases de los confinamientos originales, lo que reducirÃa las emisiones de metano, un potente gas de efecto invernadero, y ayudar a reducir aún más la contaminación que daña la salud pública.
Read more ...
There's more to trying to slow down climate change than just cutting greenhouse gas emissions. Technology, policies or plans that aim to do so should also take environmental factors such as water usage into account. A more integrated approach might make some options considerably more attractive than others, especially when implemented in arid countries such as Australia, advise Philip Wallis of Monash University in Australia and colleagues, in an article in Springer's journal Climatic Change.
The researchers considered the example of Australia to show how water usage influences the appeal of certain preferred mitigation options. They analyzed 74 options that were ranked in the influential "Low Carbon Growth Plan for Australia" in 2010, and together could help Australia cut its 2000 emission levels by 25 percent by 2020.
Read more ...
