Scientists are turning to the Australian and US navies to help protect them from Somali pirates in the western Indian ocean.
Representatives from 200 countries are gathering in Cancun for this year's UN climate summit. But hopes aren't high that there will be any global deal as a result.
Scientists at the Woods Hole Oceanographic Institution (WHOI) have observed the Earth's crust forming in an entirely unexpected way — and one that could affect the world’s climate.
Would you eat meat grown in vats? No? Well, how about if you were really hungry? What could be better than a nice juicy cheeseburger with fries?
And does it really matter whether the meat was raised, grown or cloned?
Heat waves like the one now roasting the Eastern Seaboard are likely to become commonplace over the next 30 years, say scientists at Stanford University - even if global temperatures rise by only one degree Celcius.
GreenPeace has expressed its concern over the iPad's rather potentially large carbon footprint.
A top ecological forecaster says it is harder than experts thought to predict sudden shifts in Earth's natural systems - the so-called tipping point.