Antarctic life is more diverse than previously thought

The team of scientists, led by Monash University, along with colleagues from the British Antarctic Survey, University of Waikato in New Zealand, and Australian National University, looked at how recent investigations have revealed the continent and surrounding ocean is rich in species. They are also very highly diversified into a variety of distinct ecological regions that differ greatly from each other.

Ice cores show volcanic eruptions and cold climate strongly linked

Researchers find new evidence that large eruptions were responsible for cold temperature extremes recorded since early Roman timesIt is well known that large volcanic eruptions contribute to climate variability. However, quantifying these contributions has proven challenging due to inconsistencies in both historic atmospheric data observed in polar ice cores and corresponding temperature variations seen in climate indicators such as tree rings.

Are septic tanks doing their job?

The notion that septic tanks prevent fecal bacteria from seeping into rivers and lakes simply doesn’t hold water, says a new Michigan State University study.

What you should know about America's Clean Power Plan

Today, President Obama will unveil the U.S. Environmental Protection Agency’s (EPA’s) Clean Power Plan—a historic step to cut the carbon pollution driving climate change. Here are six key things every American should know...

Trophy hunting is not the main reason for declining population of lions in Africa

Africa has half as many lions as 20 years ago - but don't blame trophy huntingThe killing of Zimbabwe's Cecil the Lion has put a welcome spotlight on the alarming decline of Africa's lions, write Lochran Traill & Norman Owen-Smith. But to save the species, we should not obsess about trophy hunting, but tackle much more serious problems - like snaring and habitat fragmentation.

UN adopts resolution to attack wildlife crime

Faced with an unprecedented surge in wildlife crime, the UN this week adopted a historic resolution committing all countries to ramp up their collective efforts to end the global poaching crisis and tackle the vast illegal wildlife trade.   Initiated by Gabon and Germany and co-sponsored by 84 other nations, the UN General Assembly resolution, Tackling the Illicit Trafficking in Wildlife, is the result of three years of diplomatic efforts and is the first time that every nation has acknowledged the seriousness of wildlife crime and the urgent need to join forces to combat it.  

What actually causes aging?

When does aging really begin? Two Northwestern University scientists now have a molecular clue. In a study of the transparent roundworm C. elegans, they found that adult cells abruptly begin their downhill slide when an animal reaches reproductive maturity.A genetic switch starts the aging process by turning off cell stress responses that protect the cell by keeping important proteins folded and functional. The switch is thrown by germline stem cells in early adulthood, after the animal starts to reproduce, ensuring its line will live on.