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In the 1980s, the terms global warming and climate change became more common, often being used interchangeably. [35] [36] [37] Scientifically, global warming refers only to increased surface warming, while climate change describes both global warming and its effects on Earth's climate system, such as precipitation changes. [34]
Society portal. v. t. e. Human impact on the environment (or anthropogenic environmental impact) refers to changes to biophysical environments [ 1] and to ecosystems, biodiversity, and natural resources [ 2] caused directly or indirectly by humans. Modifying the environment to fit the needs of society (as in the built environment) is causing ...
Deforestation is the main land use change contributor to global warming, [62] Between 1750 and 2007, about one-third of anthropogenic CO 2 emissions were from changes in land use - primarily from the decline in forest area and the growth in agricultural land.
The health effects of climate change are expected to rise in line with projected ongoing global warming for different climate change scenarios. [125] [126] A review [127] found if warming reaches or exceeds 2 °C this century, roughly 1 billion premature deaths would be caused by anthropogenic global warming. [128]
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 list of climate change controversies (or list of global warming controversies) concerns past or present public debates over certain aspects of climate change: whether it is occurring ( climate change deniers dispute this), how much has occurred in modern times, what has caused it, what its effects will be, whether action should be taken to ...
The current scientific consensus regarding causes and mechanisms of climate change, its effects and what should be done about it ( climate action) is that: It is "unequivocal" and "incontrovertible" that the greenhouse gas emissions from human activities have caused warming on land, in oceans and in the troposphere.
1.4–3.8 °C. Climate Change 2007, the Fourth Assessment Report ( AR4) of the United Nations Intergovernmental Panel on Climate Change (IPCC), was published in 2007 and is the fourth in a series of reports intended to assess scientific, technical and socio-economic information concerning climate change, its potential effects, and options for ...