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Various definitions of pollution exist, which may or may not recognize certain types, such as noise pollution or greenhouse gases.The United States Environmental Protection Administration defines pollution as "Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard.
The scientific community has been investigating the causes of climate change for decades. After thousands of studies, the scientific consensus is that it is "unequivocal that human influence has warmed the atmosphere, ocean and land since pre-industrial times."
Climate change can also be used more broadly to include changes to the climate that have happened throughout Earth's history. [32] Global warming—used as early as 1975 [33] —became the more popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the U.S. Senate. [34] Since the 2000s, climate change has ...
Climate change is driving extreme weather By all accounts, the last few years have been brutal for the climate — and for the humans and other living things within it. Around the globe, heat ...
The study estimated that a third of the deaths linked to PM 2.5 pollution were caused by stroke, another third by heart disease and the remaining by lung-related diseases and infections.
The effects of climate change vary in timing and location. Up until now the Arctic has warmed faster than most other regions due to climate change feedbacks. [164] Surface air temperatures over land have also increased at about twice the rate they do over the ocean, causing intense heat waves.
The climate crisis encompasses global warming and climate change, which have resulted from the excessive accumulation of greenhouse gases in the Earth's atmosphere. [8] It leads to rising temperatures, sea-level rise , and extreme weather events such as extreme precipitation, flooding , extreme heat events, severe storms, drought and more. [ 8 ]
Additionally, another issue caused by humans which impacts marine life is marine plastic pollution, which poses a threat to marine life. [6] According to the IPCC (2019), since 1950 "many marine species across various groups have undergone shifts in geographical range and seasonal activities in response to ocean warming, sea ice change and ...