There are now 3.04 trillion trees on earth Scientists have calculated the total number of trees of earth: 422 for each person. And we have lost almost the same number since the dawn of human civilisation.
Ecosystem clash imminent as Arctic warming continues Species from the Atlantic and the Pacific oceans will soon start to mix and this could have serious consequences.
Sea creatures are threatened by our medicines Medication ingested by humans is taken up by algae and sea creatures. Entire ecosystems can be affected, according to a Swedish researcher.
