• Evidences which show that climate change is happening:
Sea level riseGlobal sea level rose about 17 centimetersin the last century.
Global temperature rise Surface temperature has warmed since 1880, most of this warming has happened since 1970s. The 10 warmest years ocurred in the past 12 years and between 2007 and 2009 surface temperatures continue to increase.
Warming oceansThe oceans have absorbed much of this increaseheat, with the top 700 meters of ocean showingwarming of 0,302 degrees Fahrenheit since 1969.
Melting of ice sheets Greenland lost 150 to 250 cubic kilometers of ice per year between 2002 and 2006, while Antarctica lost about 152 cubic kilometers of ice between 2002 and 2005 .
Glaciar retreat Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.