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The effects of climate change on human health are increasingly well studied and quantified. [1] [2] Rising temperatures and changes in weather patterns are increasing the severity of heat waves, extreme weather and other causes of illness, injury or death. Heat waves and extreme weather events have a big impact on health both directly and ...
[6]: 2 Methane is a major source of water vapour in the stratosphere through oxidation; [7] and water vapour adds about 15% to methane's radiative forcing effect. [8] The global warming potential (GWP) for methane is about 84 in terms of its impact over a 20-year timeframe, and 28 in terms of its impact over a 100-year timeframe. [9] [10]
Methane's GWP 20 of 85 means that a ton of CH 4 emitted into the atmosphere creates approximately 85 times the atmospheric warming as a ton of CO 2 over a period of 20 years. [23] On a 100-year timescale, methane's GWP 100 is in the range of 28–34. Methane emissions are important as reducing them can buy time to tackle carbon emissions. [24] [25]
Methane directly influences the climate system and also has indirect impacts on human health and ecosystems, in particular through its role as a precursor of tropospheric ozone. [2] [3] [5] [6] HFCs are man-made greenhouse gases used in air conditioning, refrigeration, solvents, foam blowing agents, and aerosols. Many HFCs remain in the ...
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 ...
The health benefits from climate change mitigation are significant. Potential measures can not only mitigate future health impacts from climate change but also improve health directly. [266] [267] Climate change mitigation is interconnected with various health co-benefits, such as those from reduced air pollution. [267]
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. [13] The World Health Organization calls climate change one of the biggest threats to global health in the 21st century. [14]
Climate change can affect wellbeing and mental health also through indirect consequences, such as "loss of land, flight and migration, exposure to violence, change of social, ecological, economic or cultural environment". [17] Indirect effects on mental health can also occur via impacts on physical health.