Chemical contents of these medicinal mood-lifters are taking a toll on marine life, even in relatively concentrations.
Where there was once a free-flowing river, now there are piles of rubble, broken pipes and a concrete wall blocking the water.
Sharks are no mere automata driven only by unquenchable blood lust. They have individual personalities, like many other animals.
Scientists from Cornell University have just found a way to help you stop milk from going bad.
Wind turbines are a great way to generate low-carbon electricity. But there might be a catch.
Simply replanting trees, to create secondary forests, is no substitute for keeping primary forests intact in the first place.