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The IPCC introduced the idea of tipping points two decades ago. A possible tipping point is the melting of land ice in the polar regions (Greenland and Antarctica), leading to many meters of sea-level rise over time. Models suggest that the '''Greenland ice sheet''' could eventually disappear at 1.5 °C of warming<ref name=":8" /><sup><sup>]</sup></sup>, although only after many years. In July 2021, a heat wave caused Greenland to lose enough ice to cover the US state of Florida in 2 inches (5cm) of water in one day<ref>"[https://www.reuters.com/world/europe/greenland-experienced-massive-ice-melt-this-week-scientists-say-2021-07-30/ Greenland experienced 'massive' ice melt this week, scientists say.]” Reuters</ref> <ref name=":21" />. Sea ice is already shrinking rapidly in the Arctic, indicating that, at 2°C of warming, the region has a 10–35 percent chance of becoming largely ice-free in the summer<ref>[https://www.ipcc.ch/srocc/chapter/chapter-3-2/ IPCC Special Report on Polar Regions]</ref>.
The IPCC introduced the idea of tipping points two decades ago. A possible tipping point is the melting of land ice in the polar regions (Greenland and Antarctica), leading to many meters of sea-level rise over time. Models suggest that the '''Greenland ice sheet''' could eventually disappear at 1.5 °C of warming<ref name=":8" /><sup><sup>]</sup></sup>, although only after many years. In July 2021, a heat wave caused Greenland to lose enough ice to cover the US state of Florida in 2 inches (5cm) of water in one day<ref>"[https://www.reuters.com/world/europe/greenland-experienced-massive-ice-melt-this-week-scientists-say-2021-07-30/ Greenland experienced 'massive' ice melt this week, scientists say.]” Reuters</ref> <ref name=":21" />. Sea ice is already shrinking rapidly in the Arctic, indicating that, at 2°C of warming, the region has a 10–35 percent chance of becoming largely ice-free in the summer<ref>[https://www.ipcc.ch/srocc/chapter/chapter-3-2/ IPCC Special Report on Polar Regions]</ref>. Translation The IPCC introduced the idea of tipping points two decades ago. A possible tipping point is the melting of land ice in the polar regions (Greenland and Antarctica), leading to many meters of sea-level rise over time. Models suggest that the '''Greenland ice sheet''' could eventually disappear at 1.5 °C of warming<ref name=":8" /><sup><sup>]</sup></sup>, although only after many years. In July 2021, a heat wave caused Greenland to lose enough ice to cover the US state of Florida in 2 inches (5cm) of water in one day<ref>"[https://www.reuters.com/world/europe/greenland-experienced-massive-ice-melt-this-week-scientists-say-2021-07-30/ Greenland experienced 'massive' ice melt this week, scientists say.]” Reuters</ref> <ref name=":21" />. Sea ice is already shrinking rapidly in the Arctic, indicating that, at 2°C of warming, the region has a 10–35 percent chance of becoming largely ice-free in the summer<ref>[https://www.ipcc.ch/srocc/chapter/chapter-3-2/ IPCC Special Report on Polar Regions]</ref>. The IPCC introduced the idea of tipping points two decades ago. A possible tipping point is the melting of land ice in the polar regions (Greenland and Antarctica), leading to many meters of sea-level rise over time. Models suggest that the Greenland ice sheet could eventually disappear at 1.5 °C of warming[1] ] [2] [3] [4]