|Human Activity And Consequences|The Ozone Layer And GreenHouse Effect | Glossary And References|
Normally global warming is the rise of the global temperature that is a natural cycle that takes place over the years (thousands). It causes the rises and falls of the sea level and the encroachment and retreat of glaciers. The sun plays a main role in the change of temperatures, it's energy is the main contributor of the variations of temperature and responsible for the changes in seasons (winter, summer, spring, autumn). The distance between the sun and earth and the amount of radiation from the sun is of main importance.
LIFE
Global warming affects humans, animal and plant species, ecosystems and regions. According to Defenders Of Wildlife, some of the wildlife species hardest hit so far by global warming include caribou (reindeer), arctic foxes, toads, polar bears, penguins, gray wolves, tree swallows, painted turtles and salmon. In the present, scientists cannot predict exactly which species will responsed to climate change based on what kind of organism it is because species of animals and plants responds differently than others, but studies predict that species in cold climate habits like the Earth’s poles or mountain tops are the most affected by global warming.
