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Some climate change effects: wildfire caused by heat and dryness, bleached coral caused by ocean acidification and heating, environmental migration caused by desertification, and coastal flooding caused by storms and sea level rise. Effects of climate change are well documented and growing for Earth's natural environment and human societies. Changes to the climate system include an overall ...
World leaders are meeting in Paris this month in what amounts to a last-ditch effort to avert the worst ravages of climate change. Climatologists now say that the best case scenario — assuming immediate and dramatic emissions curbs — is that planetary surface temperatures will increase by at least 2 degrees Celsius in the coming decades.
Present and future exposure of frog species around the world to unprecedented heat, under a more intense climate change scenario SSP3-7.0. Green, yellow and red circles show whether one, two or all three key thresholds (annual mean temperature, coldest month temperature or temperature variability) are exceeded by 2100. [61]
Climate change threatens people with increased flooding, extreme heat, increased food and water scarcity, more disease, and economic loss. Human migration and conflict can also be a result. [12] The World Health Organization calls climate change one of the biggest threats to global health in the 21st century. [13]
In general, the preferred ambient temperature range for domestic animals is between 10 and 30 °C (50 and 86 °F). [3]: 747 Much like how climate change is expected to increase overall thermal comfort for humans living in the colder regions of the world, [6] livestock in those places would also benefit from warmer winters. [2]
Updated 2022 estimates show that even at a global average increase of 1.5 °C (2.7 °F) over pre-industrial temperatures, only 0.2% of the world's coral reefs would still be able to withstand marine heatwaves, as opposed to 84% being able to do so now, with the figure dropping to 0% at 2 °C (3.6 °F) warming and beyond.
Heat exposure can affect people's ability to work. [3]: 8 The annual Countdown Report by The Lancet investigated change in labour capacity as an indicator. It found that during 2021, high temperature reduced global potential labour hours by 470 billion – a 37% increase compared to the average annual loss that occurred during the 1990s.
If more than one stressor is present the effects can be amplified. [133] [134] For example, the combination of ocean acidification and an elevation of ocean temperature can have a compounded effect on marine life far exceeding the individual harmful impact of either. [135] [136] [137]