Impacts of global warming What changes to the climate are humans causing through global warming? Global warming, caused by greenhouse gas pollution, is causing changes to the planet The Earth's temperature had already warmed by 1"C. This temperature rise may appear small, but small rises in temperature translate into big changes for the world's climate. - Hotter days: 2015 was the hottest year on record, the previous record was broken in 2014, and 2016 is expected to set a new record for the third year in a row as a consequence of global warming. - Rising sea levels: Increased ocean temperatures are melting glaciers and ice caps all over the world consequently melted ice increases the volume of water in our oceans, which causes sea levels to rise, threatening low-lying' islands and coastal cities. - More frequent and intense extreme weather events: Extreme weather events like bushfires, cyclones, droughts and floods are becoming more frequent and more intense as a result of global warming. - Oceans are warming and acidifying: The oceans have absorbed most of extra heat and carbon dioxide (CO2) so far more than the air - making the seas both warmer and more acidic. Warming waters are bleaching coral reefs and driving stronger storms. Rising ocean acidity threatens shellfish, including the tiny crustaceans without which marine food chains would collapse. Ecosystems: Global warming stresses ecosystems through temperature rises, water shortages", increased fire threats, drought, weed and pest invasions and intense storm damage, just to name a few. faire un tres court resumer de ce texte ( quelque lignes svp)​ niveau collège c est