“Human interference with the climate system is occurring, and climate change poses risks for human and natural systems.” IPCC WGII AR5
Every five years or so thousands of scientists from around the world release a major report on the state of climate science. These reports from the Intergovernmental Panel on Climate Change (IPCC) are the most definitive source of information for understanding not only the planet’s geologic and climatic history, but how humans are now influencing earth’s systems, most notably by altering the composition of the atmosphere.