the world that is hard to live-dönüştürüldü | Page 4

Tr Nevsehir Meryem The average temperature in the world is about 15 degrees. However, scientists say that temperatures are now increasing much faster than in previous periods. The factor behind this is the greenhouse gas effect, This causes both the lower layers of the atmosphere and the Earth’s surface to heat up. Without the greenhouse gas effect, the world would be about 30 degrees cooler and would not be able to offer a favourable environment for life. Another problem is, of course, climate change. It causes the decrease of fresh water resources and troubles with foodstuffs and may result in floods, storms and heat waves. It is also changing faster than the adaptation of living species to natural habitats, so animals can disppear.