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The goal of the clock is to convey threats to humanity and the planet, and to create public awareness that will lead to solutions. In the beginning, the Doomsday Clock focused on the dangers of nuclear war, but in the 21st century, it has begun to deal with other issues like climate change and disinformation on the internet.
A related phenomenon driven by climate change is woody plant encroachment, affecting up to 500 million hectares globally. [218] Climate change has contributed to the expansion of drier climate zones, such as the expansion of deserts in the subtropics. [219] The size and speed of global warming is making abrupt changes in ecosystems more likely ...
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 second part of the report, a contribution of working group II (WGII), was published on 28 February 2022. Entitled Climate Change 2022: Impacts, Adaptation & Vulnerability, the full report is 3675 pages, plus a 37-page summary for policymakers. [29] It contains information on the impacts of climate change on nature and human activity. [30]
13 February: a study published in Current Issues in Tourism projected that for the 2050s, U.S. ski seasons will shorten between 14–33 days (low emissions scenario) and 27 to 62 days (high emissions scenario), with direct economic losses of $657 million to 1.352 billion annually. [10]
Address regional issues of climate change, deforestation, and urban growth; Discuss effective simultaneous implementation of several multilateral environmental agreements [10] October 21–23, 2001 Rio de Janeiro, Brazil Create a Regional Action Plan for 2002–2005; Address regional issues of deforestation and vulnerability of urban environments
The debates are around the specific actions for climate change mitigation and climate change adaptation, or climate action in general. See for example: Economic analysis of climate change; Climate change denial#Delaying climate change mitigation measures; Climate change denial#Pushing for adaptation only; Climate action (Climate crisis)