What causes this increase in temperature?
1st
Warming of the oceans2nd
Melting ice and snows3rd
The rising sea levelsApproximately every five years, the IPCC draws up evaluation reports that confirm, with increasing certainty, that human activity is the main cause of global temperature increase.
Evolution of certainty regarding the influence of man in global warming
thrid report
fourth report
fifth report
Each of the IPCC reports has resulted in some initiatives to combat Climate Change
1990
first report
Derived in the Framework Convention on Climate Change (UNFCCC)
1995
second report
Provided material for the Kyoto Protocol derived from the UNFCCC.
2001
third report
Evidenced the role of human activities in the global warming recorded in the last 50 years
2007
fourth report
Agreement to promote renewable energies among developing countries
2014
fifth report
Concerning the negotiation of the Paris International Agreement 2015, which will replace Kyoto from 2020
WHAT IS THE IPCC?
Intergovernmental Group of Experts to Provide Neutral Information on Climate Change.What changes have been observed in the climate system?
WARMING OF THE ATMOSPHERE
In the period 1880 - 2012 the global temperature has increased 0,85º C
In the northern hemisphere the period 1983 - 2012 has been the warmest 30-year interval of the last 800 years
SEA LEVEL
During the period 1901 - 2010, the average global sea level rose 0.19 meters.
CRYOSPHERE
The glaciers and ice sheets of Greenland and Antarctica are losing mass.
THE CARBON CYCLE
The CO2 concentration has increased by 40% since the pre-industrial era
ACIDIFICATION
The pH of the surface ocean has declined by 0.1% since the beginning of the industrial era.
Some consequences of climate change
The glaciers of Patagonia have decreased in their extension between 10% and 20%.
Total disappearance of water in the eastern lobe of the Aral Sea.
Global warming increases cholera cases by 4.9% in Africa.