“EC. Climate Change Key Terms. Climate change = A change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods.”
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Note from author: Climate has changed throughout the history of Earth many times. With a reference to National Geographic Society/Education, climates around the Earth do change, however, with a slow pace. The Earth has, in history, been a warmer place, but has also gone through several ice ages according to research. However, when we now speak about climate change, we refer to human-caused climate change, which has scientifically been proven to be caused by us human beings releasing immense amounts of greenhouses gases into Earth´s atmosphere. These greenhouse gases, invisible to the human eye, contribute to an (artificial) greenhouse effect, warming up the climate around Earth. Unless absorbed e.g. by trees, forests, and plants and transformed by them into oxygen, greenhouse gases continue to warm up our Earth, including warming seas and oceans, causing Earth´s natural balance to shake. This has finally been realized around the world, and is been taken into consideration in e.g. urban planning projects, and in the planting of new trees around the world.
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Anne-Maria Yritys 