6. Quotes from IPCC's "Climate Change 2014 - Synthesis Report"
Yesterday, the IPCC
published its "Climate Change 2014 - Synthesis Report
". The Synthesis Report distils and integrates the findings of the IPCC Fifth Assessment Report produced by over 800 scientists and released over the past 13 months â€“ the most comprehensive assessment of climate change ever undertaken.
Hereafter some remarkable quotes from the report:
p. 7: "There is very high confidence that maximum global mean sea level during the last interglacial period (129,000 to 116,000 years ago) was, for several thousand years, at least 5 m higher than present.
p. 10: "Since 1970 cumulative CO2 emissions from fossil fuel combustion, cement production and flaring have tripled and cumulative CO2 emissions from forestry and other land use have increased by about 40%. In 2011 annual CO2 emissions from fossil fuel combustion, cement production and flaring were 34.8 Â± 2.9 GtCO2yr-1. For 2002-2011 average annual emissions from forestry and other land use were 3.3 Â± 2.9 GtCO2yr-1.
p. 30: "Many aspects of climate change and its impacts will continue for centuries, even if anthropogenic emissions of greenhouse gases are stopped. The risks of abrupt or irreversible changes increase as the magnitude of the warming increases.
p. 39: "Scenarios that are likely to maintain warming at below 2Â°C are characterized by a 40% to 70% reduction in GHG emissions by 2050, relative to 2010 levels, and emissions level near zero or below in 2100."
p. 50: "Decarbonizing (i.e. reducing the carbon intensity of) electricity generation is a key component of cost-effective mitigation strategies in achieving low stabilization levels (of about 450 to about 500 ppm CO2eq, at least as likely as not to limit warming to 2Â°C above pre-industriallevels)
p. 52: "Because climate change has the characteristics of a collective action problem at the global scale, effective mitigation will not be achieved if individual agents advance their own interests independently, even though mitigation can also have local co-benefits. Cooperative responses, including international cooperation, are therefore required to effectively mitigate GHG emissions and address other climate change issues.