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The effects of climate change on human health are profound because they increase heat-related illnesses and deaths, respiratory diseases, and the spread of infectious diseases. There is widespread agreement among researchers, health professionals and organizations that climate change is the biggest global health threat of the 21st century. [1] [2]
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 effects of climate change are impacting humans everywhere in the world. [233] Impacts can be observed on all continents and ocean regions, [234] with low-latitude, less developed areas facing the greatest risk. [235] Continued warming has potentially "severe, pervasive and irreversible impacts" for people and ecosystems. [236]
These data, known as the Keeling Curve, have iconic status in climate change science as evidence of the effect of human activities on the chemical composition of the global atmosphere. [37] Keeling's initial 1958 measurements showed 313 parts per million by volume .
Climate change adaptation is the process of adjusting to the effects of climate change, both current and anticipated. [1] Adaptation aims to moderate or avoid harm for people, and is usually done alongside climate change mitigation. It also aims to exploit opportunities. Humans may also intervene to help adjust for natural systems. [1]
Global climate change has increased the occurrence of some infectious diseases. [9] Infectious diseases whose transmission is impacted by climate change include, for example, vector-borne diseases like dengue fever , malaria , tick-borne diseases , leishmaniasis , zika fever , chikungunya and Ebola .
Physical health can be severely impacted by climate change (see also effects of climate change on human health). The deterioration of a person's physical health can also lead to a deterioration in a person's mental health. [20] The less extreme direct manifestations of climate change can also have direct psychological effects.
The total economic impacts from climate change are difficult to estimate. In general, they increase the more the global surface temperature increases (see climate change scenarios). [3] Many effects of climate change are linked to market transactions and therefore directly affect metrics like GDP or inflation.