Listen up people. This is serious. The Intergovernmental Panel on Climate Change (IPCC) has released an assessment of current climate research and the IPCC’s conclusions could not be any clearer. There is 95% certainty that humans are responsible for warming the atmosphere, and we are getting closer and closer to the point of no return.
An intergovernmental panel, the IPCC is considered the world’s leading climate change and global warming advisory body, and its fifth assessment report (AR5), is a document released every six years that is considered the benchmark on climate change. More than 800 authors and 50 editors from dozens of countries took part in its creation. The IPCC’s reports, which focus on peer-reviewed research, undergo a meticulous review process involving thousands of scientists and government representatives.
The painstaking research verified that each of the last three decades has been successively warmer at the Earth’s surface than any preceding decade since 1850. In the Northern Hemisphere, 1983–2012 was likely the warmest 30-year period of the last 1400 years.
Atmospheric concentrations of methane, nitrous oxide, and carbon dioxide (CO2), have increased to unparalleled levels in the last 800,000 years. Since pre-industrial times, CO2 concentrations have increased by 40%. This is due to fossil fuel emissions and from net land use change emissions.
Ocean acidification has increased since it has absorbed about 30% of the emitted anthropogenic carbon dioxide.
In order to keep global warming below an internationally agreed upon target of 3.6 degrees Fahrenheit above preindustrial levels, the IPCC calculated that only approximately 1 trillion tons of carbon can be burned and the resulting gas spewed into the atmosphere.
The IPCC’s full report will be made public next week.