Month: June 2012

  • Warmer forests expel carbon from soils creating “vicious cycle”

    As the world warms, temperate forests could become a source of carbon dioxide emission rather than a sink according to a new study in the Proceedings of the National Academy of Sciences (PNAS). Scientists found that two forest sites in the U.S. (Wisconsin and North Carolina) emitted long-stored carbon from their soils when confronted with…

  • New Study: Smart Roofs Could Transform California Energy and Water Use

    Installing green roofs and cool roofs in southern California could save consumers more than $211 million in energy bills and reduce emissions equivalent to removing 91,000 cars from the road each year, according to a new study from the Natural Resources Defense Council and the Emmett Center on Climate Change and the Environment at UCLA…

  • Did CO2 Cause Mass Extinction 252 Million Years Ago?

    New clues in a mass murder that took place 252 million years ago points to a suspect: Ocean acidification may have driven the largest extinction of animals the world has ever seen. Carbon dioxide belched out by volcanic eruptions during the Permian period could have caused the oceans’ chemistry to change. That’s worrisome because CO2…

  • The Regions of Antarctica

    Studies of continental Antarctica typically described broad bioregions, with the Antarctic Peninsula usually identified as biologically distinct from continental Antarctica. To many Antarctica is one vast singular frozen place. Later studies suggested a more complex biogeography. In a new study published in “Diversity and Distributions” 15 distinct, ice-free, Antarctic Conservation Biogeographic Regions have been identified,…

  • Space Dust

    Stuff is constantly falling down on the Earth from outside its atmosphere. This might be very large rocks that we will notice to specks of dust that fall and float down. Currently, estimates of the Earth’s intake of space dust vary from around five tons to as much as 300 tons every day. The Cosmic…

  • Another Cosmic Impact

    The Younger Dryas, also referred to as the Big Freeze, was a geologically brief (about 1,300 years) period of cold climatic conditions and drought which occurred about 12,000 years ago. The Younger Dryas stadial is thought to have been caused by the collapse of the North American ice sheets, although rival theories have been proposed.…

  • Morning People Are Actually Happier Than Night Owls

    Night owls often wake up for work or school with a scowl on their faces and wishing for an IV drip of coffee, while morning people come skipping in 15 minutes early. However, morning people aren’t chipper just as the sun is coming up; they are happier and more satisfied with life overall, a new…

  • Algal biofuels are no energy panacea

    Algal biofuels, like crops, demand land, water, fertilisers, pesticides and inputs that are costly for India, says Hoysall Chanakya

  • Global Warming over last 50 yrs caused primarily by human activity

    The oceans have warmed in the past 50 years, but not by natural events alone. New research by a team of Lawrence Livermore National Laboratory scientists and international collaborators shows that the observed ocean warming over the last 50 years is consistent with climate models only if the models include the impacts of observed increases…

  • The Greening of the Arctic Tundra

    One of the most inhospitable places in the entire world, the Arctic Tundra, is now undergoing an amazing transformation. Rising temperatures in the Arctic circle have caused changes in vegetation in the last few decades. Plants are growing taller, there is less bare ground devoid of vegetation, and even some shrubs are growing. It is…