"Brazil and Lula: Save Mahogany". This is Greenpeace activists' message today for Brazil's new president Luiz Inacio da Silva, affectionately known by the public as "Lula". Without decisive support at the UN meeting now underway, the illegal...

Theories abound for dinosaurs' dramatic exit from the planet millions of years ago. Now another mass extinction is underway on Earth, but this time the cause is amply clear: humans. It's time to stop trading Earth's biodiversity for profits, and...