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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 ...
The scientific community has been investigating the causes of climate change for decades. After thousands of studies, it came to a consensus , where it is "unequivocal that human influence has warmed the atmosphere, ocean and land since pre-industrial times."
Climate security refers to the security risks induced, directly or indirectly, by changes in climate patterns. Climate change has been identified as a severe-to-catastrophic threat to international security in the 21st century by multiple risk and security reports.
Google Alerts is a content change detection and notification service, offered by Google. The service sends emails to the user when it finds new results—such as web pages, newspaper articles, blogs, or scientific research—that match the user's search term(s). [ 1 ]
Adapting to climate change through efforts like flood control measures or drought-resistant crops partially reduces climate change risks, although some limits to adaptation have already been reached. Poorer communities are responsible for a small share of global emissions , yet have the least ability to adapt and are most vulnerable to climate ...
A 2019 review of scientific papers found the consensus on the cause of climate change to be at 100%, [6] and a 2021 study concluded that over 99% of scientific papers agree on the human cause of climate change. [7] The small percentage of papers that disagreed with the consensus often contained errors or could not be replicated. [8]
A historically important question in climate change research has regarded the relative importance of human activity and natural causes during the period of instrumental record. In the 1995 Second Assessment Report (SAR), the IPCC made the widely quoted statement that "The balance of evidence suggests a discernible human influence on global ...
The Intergovernmental Panel on Climate Change (IPCC) has organized many of the risks of climate change into five "reasons for concern." [1] [2] The reasons for concern show that these risks increase with increases in the Earth's global mean temperature (i.e., global warming).