This is due primarily to the sharp increase in greenhouse gas emissions in 2000-2007 due to large-scale construction of the coal industry in China and India. According to scientist prolonged heating of the planet from greenhouse gas emissions, the devastating fires in tropical forests, as well as melting of permafrost in the Arctic, billions of tons of gases that lead to an increase in temperature in the world. Warming could accelerate the melting of permafrost, which could lead to further sharp increase in the amount of carbon in the atmosphere. Researchers found that the same animals live at both poles of the Earth International team of scientists found that at least 235 species of marine animals live on both poles of the Earth. Among the 'bipolar' animals were worms, crustaceans, pteropoda (swimming snails), and gray whales and birds. How as the same substance could be at different ends of the planet, for biologists remains a mystery. Now experts are analyzing the dna of marine animals to determine whether the inhabitants of North and South poles are identical. The researchers also found evidence that cold-water marine species migrated to both poles, escaping from rising ocean temperatures. Tropical forests are absorbing more carbon dioxide group of scientists from Africa, Europe, America, Asia, analyzed data from the monitoring of ecological services of ten states in the western, central and eastern African the continent, following the growth of trees on 79 plots of tropical forest with a total area 163 hectares from 1968 to 2007, and concluded that tropical forests of Africa, Asia and South America in recent decades were to absorb 4.8 billion tons more carbon dioxide emissions growth by human activities considered chiefly responsible for the greenhouse effect and global warming.