True, scientists are determined that a number of human activities are contributing to global warming by adding excessive amounts of greenhouse gases to the atmosphere. But, with researchers coming up with results, scientists say that, it was also during the pre-historic period when nature and space contributed a lot to global warming. No men treaded the globe then. Blame the earth’s crust or the poles. It was methane that was released from the earth’s crust 180 million years ago, rising the planet’s temperature. This in turn swept the earth of the dinosaurs and various other species. But, a large fraction of the phenomenon is catalyzed by us. True, we can’t stop Nature. But, we can take responsible steps to curb and reduce the cataclysms it can bring on the planet. Find here more about what this aggrevating phenomenon has in store for us!