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[[File:Global warming map.png|thumb|Change in average surface temperatures from 1956–1976 to 2011–2021]] | [[File:Global warming map.png|thumb|Change in average surface temperatures from 1956–1976 to 2011–2021]] | ||
'''Climate change''' is the rise in global temperatures and resulting changes in weather caused by human activity, especially [[capitalism]]. Greenhouse gases including carbon dioxide (CO<sub>2</sub>), methane (CH<sub>4</sub>), and nitrous oxide (N<sub>2</sub>O) increase temperatures. Average temperatures have already increased by 1 ºC since the [[Industrial Revolution]] and carbon dioxide in the atmosphere has risen from 280 | '''Climate change''' is the rise in global temperatures and resulting changes in weather caused by human activity, especially [[capitalism]]. Greenhouse gases including carbon dioxide (CO<sub>2</sub>), methane (CH<sub>4</sub>), and nitrous oxide (N<sub>2</sub>O) increase temperatures. Average temperatures have already increased by 1.3 ºC since the [[Industrial Revolution]],<ref name=":2">{{Web citation|author=Moira Cassidy|newspaper=[[Liberation News]]|title=The evil twins: Climate change and ocean acidification|date=2019-09-15|url=https://www.liberationnews.org/the-evil-twins-climate-change-and-ocean-acidification/|archive-url=https://web.archive.org/web/20210506055618/https://www.liberationnews.org/the-evil-twins-climate-change-and-ocean-acidification/|archive-date=2021-05-06|retrieved=2022-10-02}}</ref> and carbon dioxide in the atmosphere has risen from 280 to 400 parts per million. In addition to rising temperatures, higher levels of carbon dioxide make the oceans more acidic, destroying coral reefs and killing marine animals.<ref name=":0">{{Web citation|author=Jon Britton|newspaper=[[Liberation School]]|title=The UN Climate Summit—words versus deeds|date=2014-10-04|url=https://www.liberationschool.org/un-climate-summit-words-versus-deeds/|archive-url=https://web.archive.org/web/20220124202746/https://www.liberationschool.org/un-climate-summit-words-versus-deeds/|archive-date=2022-01-24|retrieved=2022-10-02}}</ref> | ||
In late 2023, the average global temperature temporarily exceeded 2 ºC of warming from preindustrial level, providing an alarming indication of the speed of global warming and extreme conditions associated with it.<ref>{{Web citation|author=Andrew Freedman|newspaper=AXIOS|title=Earth likely briefly passed critical warming threshold on Friday and Saturday|date=2023-11-21|url=https://www.axios.com/2023/11/20/earth-2c-warming-threshold-passed-report|retrieved=2023-12-2}}</ref> | |||
Technology already exists to replace fossil fuels with renewable or nuclear energy, but the transition would not be profitable under a short-sighted capitalist [[market economy]].<ref name=":1">{{Web citation|author=Collin L. Chambers|newspaper=[[Liberation School]]|title=How to really avoid a climate disaster: A response to Bill Gates’ deceptive climate book|date=2021-04-14|url=https://www.liberationschool.org/how-to-really-avoid-a-climate-disaster/|archive-url=https://web.archive.org/web/20220124191553/https://www.liberationschool.org/how-to-really-avoid-a-climate-disaster/|archive-date=2022-01-24|retrieved=2022-10-02}}</ref> | |||
== Sources of greenhouse gases == | == Sources of greenhouse gases == | ||
Burning hydrocarbons, including fossil fuels, releases carbon dioxide. Agriculture releases methane through meat production and nitrous oxide through overuse of fertilizers. Rising temperatures are melting permafrost in the Arctic, releasing methane trapped in the ice and causing more warming.<ref name=":0" /> | Burning hydrocarbons, including fossil fuels, releases carbon dioxide. Agriculture releases methane through meat production and nitrous oxide through overuse of fertilizers. Rising temperatures are melting permafrost in the Arctic, releasing methane trapped in the ice and causing more warming.<ref name=":0" /> | ||
Electricity generation causes 27% of greenhouse gas emissions and steel production causes an additional 7–9%. The [[United States Department of Defense|U.S. Department of Defense]] is one of the largest polluters in the world.<ref name=":1" /> | 100 companies cause 70% of total world greenhouse gas emissions.<ref name=":2" /> Electricity generation causes 27% of greenhouse gas emissions and steel production causes an additional 7–9%. The [[United States Department of Defense|U.S. Department of Defense]] is one of the largest polluters in the world.<ref name=":1" /> | ||
=== By country === | |||
Per capita, China emits less than half as much greenhouse gases as the [[United States of America|United States]], and its current emission levels are similar to Western countries in 1885. The USA releases eight times as much greenhouse gases as [[Republic of India|India]] per capita.<ref>{{Web citation|author=Hezri A. Adnan, Jomo Kwame Sundaram|newspaper=JOMO|title=Rich nations doubly responsible for greenhouse gas emissions|date=2022-12-07|url=https://www.ksjomo.org/post/rich-nations-doubly-responsible-for-greenhouse-gas-emissions|archive-url=https://web.archive.org/web/20221206121748/https://www.ksjomo.org/post/rich-nations-doubly-responsible-for-greenhouse-gas-emissions|archive-date=2022-12-06|retrieved=2022-12-07}}</ref> | |||
== Global warming by degree == | |||
* At 1.5 ºC of warming, all coral reefs on Earth would die. | |||
* At 2 ºC, polar ice would melt enough to flood many major cities and droughts would affect 400 million people. | |||
* At 3 ºC, wildfires would increase by six times in the United States and damage from river flooding would increase at least 30 times. | |||
* At 4 ºC, sea levels would rise by 30 meters, global grain harvest would decrease by 50%, and millions of people would contract Dengue Fever in [[Latin America]] every year.<ref name=":2" /> | |||
== See also == | == See also == | ||
* [[Ecofascism]] | * [[Ecofascism]], the reactionary "response" | ||
* [[Ecosocialism]] | * [[Ecosocialism]], the revolutionary response | ||
* [[Green capitalism]] | * [[Green capitalism]], capitalist propaganda alleging that capitalism can be ecologically sustainable | ||
* [[Climate change denial]] | |||
== References == | == References == | ||
[[Category:Climate change]] | [[Category:Climate change]] | ||
[[Category:Environment]] | [[Category:Environment]] | ||
Latest revision as of 17:16, 2 December 2023
Climate change is the rise in global temperatures and resulting changes in weather caused by human activity, especially capitalism. Greenhouse gases including carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) increase temperatures. Average temperatures have already increased by 1.3 ºC since the Industrial Revolution,[1] and carbon dioxide in the atmosphere has risen from 280 to 400 parts per million. In addition to rising temperatures, higher levels of carbon dioxide make the oceans more acidic, destroying coral reefs and killing marine animals.[2]
In late 2023, the average global temperature temporarily exceeded 2 ºC of warming from preindustrial level, providing an alarming indication of the speed of global warming and extreme conditions associated with it.[3]
Technology already exists to replace fossil fuels with renewable or nuclear energy, but the transition would not be profitable under a short-sighted capitalist market economy.[4]
Sources of greenhouse gases
Burning hydrocarbons, including fossil fuels, releases carbon dioxide. Agriculture releases methane through meat production and nitrous oxide through overuse of fertilizers. Rising temperatures are melting permafrost in the Arctic, releasing methane trapped in the ice and causing more warming.[2]
100 companies cause 70% of total world greenhouse gas emissions.[1] Electricity generation causes 27% of greenhouse gas emissions and steel production causes an additional 7–9%. The U.S. Department of Defense is one of the largest polluters in the world.[4]
By country
Per capita, China emits less than half as much greenhouse gases as the United States, and its current emission levels are similar to Western countries in 1885. The USA releases eight times as much greenhouse gases as India per capita.[5]
Global warming by degree
- At 1.5 ºC of warming, all coral reefs on Earth would die.
- At 2 ºC, polar ice would melt enough to flood many major cities and droughts would affect 400 million people.
- At 3 ºC, wildfires would increase by six times in the United States and damage from river flooding would increase at least 30 times.
- At 4 ºC, sea levels would rise by 30 meters, global grain harvest would decrease by 50%, and millions of people would contract Dengue Fever in Latin America every year.[1]
See also
- Ecofascism, the reactionary "response"
- Ecosocialism, the revolutionary response
- Green capitalism, capitalist propaganda alleging that capitalism can be ecologically sustainable
- Climate change denial
References
- ↑ 1.0 1.1 1.2 Moira Cassidy (2019-09-15). "The evil twins: Climate change and ocean acidification" Liberation News. Archived from the original on 2021-05-06. Retrieved 2022-10-02.
- ↑ 2.0 2.1 Jon Britton (2014-10-04). "The UN Climate Summit—words versus deeds" Liberation School. Archived from the original on 2022-01-24. Retrieved 2022-10-02.
- ↑ Andrew Freedman (2023-11-21). "Earth likely briefly passed critical warming threshold on Friday and Saturday" AXIOS. Retrieved 2023-12-2.
- ↑ 4.0 4.1 Collin L. Chambers (2021-04-14). "How to really avoid a climate disaster: A response to Bill Gates’ deceptive climate book" Liberation School. Archived from the original on 2022-01-24. Retrieved 2022-10-02.
- ↑ Hezri A. Adnan, Jomo Kwame Sundaram (2022-12-07). "Rich nations doubly responsible for greenhouse gas emissions" JOMO. Archived from the original on 2022-12-06. Retrieved 2022-12-07.