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In common usage, climate change describes global warming —the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate.
Created, caused, or strongly influenced by humans or human activities; man-made. Climate change with the presumption of human influence, usually warming. Global warming with the presumption of human influence. The cooling effect an atmosphere has on the ambient temperature of the planet.
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 ...
Climate crisis is a term that is used to describe global warming and climate change, and their effects. This term and the term climate emergency have been used to describe the threat of global warming to humanity and Earth, and to urge aggressive climate change mitigation and transformational adaptation. [ 2][ 3][ 4][ 5]
The history of the scientific discovery of climate change began in the early 19th century when ice ages and other natural changes in paleoclimate were first suspected and the natural greenhouse effect was first identified. In the late 19th century, scientists first argued that human emissions of greenhouse gases could change Earth's energy ...
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 ...
It is clear that the ocean is warming as a result of climate change, and this rate of warming is increasing. [2]: 9 The global ocean was the warmest it had ever been recorded by humans in 2022. [13] This is determined by the ocean heat content, which exceeded the previous 2021 maximum in 2022. [13]
As of 2021 the remaining carbon budget for a 50-50 chance of staying below 1.5 degrees of warming is 460 bn tonnes of CO 2 or 11 + 1 ⁄ 2 years at 2020 emission rates. [11] Global average greenhouse gas per person per year in the late 2010s was about 7 tonnes [12] – including 0.7 tonnes CO 2 eq food, 1.1 tonnes from the home, and 0.8 tonnes from transport. [13]