Process
Coral bleaching
When water is too warm, corals expel the algae living in their tissues and turn white. Record heat in 2015 and 2016 caused the third global bleaching event since the 1980s.
Warming is moving species ranges: a 2003 analysis found shifts toward the poles averaging 6.1 km per decade and spring events arriving 2.3 days earlier per decade.Source: Parmesan & Yohe, 2003Source: IPCC, 2022
Process
When water is too warm, corals expel the algae living in their tissues and turn white. Record heat in 2015 and 2016 caused the third global bleaching event since the 1980s.
Idea or model
The variety of life, from genes to ecosystems. A 2019 global assessment found that around 1 million animal and plant species are threatened with extinction.
Process
The movement of carbon among the air, oceans, living things, soils and rocks.
The explanations on this page are our own summaries of these sources. Follow a link to read the original; if anything here disagrees with it, the original wins. How we choose and check sources.
Parmesan C, Yohe G (2003). Nature 421:37-42.
Intergovernmental Panel on Climate Change (2022). IPCC Sixth Assessment Report. Intergovernmental Panel on Climate Change.