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  • Comment: As you have been told twice before, we already have an article on this topic. —pythoncoder (talk | contribs) 15:57, 14 December 2025 (UTC)
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The Causes of Climate Change[1]

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The primary driver of modern climate change is the enhanced greenhouse effect. Human activities add enormous amounts of greenhouse gases[2] (GHGs) to those naturally occurring in the atmosphere, trapping heat and raising global temperatures.

● Burning Fossil Fuels[3]:The combustion of coaloil, and gas for electricity transport, and industry is the largest source of carbon dioxide (CO2)emissions.Carbon dioxide concentrations in the atmosphere are now 50% higher than pre-industrial levels.

Warming temperatures have extended and intensified wildfire season in the West, where long-term drought in the region has heightened the risk of fires. Scientists estimate that human-caused climate change has already doubled the area of forest burned in recent decades. By around 2050, the amount of land consumed by wildfires in Western states is projected to further increase by two to six times. Even in traditionally rainy regions like the Southeast, wildfires are projected to increase by about 30%.

● Deforestation[4]: Trees absorb carbon dioxide, acting as natural carbon sinks. Clearing forests for agriculture and development releases stored carbon into the atmosphere and reduces nature's capacity to mitigate emissions.

● Agriculture and Livestock[5]: Farming practices, particularly livestock digestion and the use of nitrogen-based fertilizers, release significant amounts of methane (CH4) and nitrous oxide, potent greenhouse gases.

Environmental Consequences

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The rising global temperature (approximately 1.1°C above pre-industrial levels) has triggered widespread and rapid changes across the atmosphere, ocean, land, and cryosphere.

● Extreme Weather Events[6]: Heatwaves, droughts, floods, wildfires, and severe storms have become more frequent and intense. This increases the risk of deaths, property damage, and the spread of infectious diseases.

● Ocean Warming and Acidification[7]: The ocean has absorbed much of the excess heat and carbon dioxide, leading to warming waters and increased acidity. This endangers marine life, damages coral reefs, and threatens fisheries that billions of people rely on for food.

● Melting Ice and Sea Level Rise[8]: Glaciers and ice sheets are shrinking globally, contributing to an accelerating rise in global sea levels, which have gone up by 8-9 inches since 1880. This threatens coastal communities and infrastructure with increased erosion and flooding.

● Biodiversity Loss:[2] Climate change, combined with other pressures like habitat destruction, poses significant risks to species' survival. Shifting climate zones force some species to relocate while others, like certain pollinators, may not adapt fast enough, risking extinction.

● Water Scarcity and Food Insecurity[9]: Changing precipitation patterns, including more extreme rainfall events in some areas and severe droughts in others, disrupt water supplies for agriculture and human consumption. This leads to crop damage, reduced yields, and an increase in global hunger and malnutrition.

Reference

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  1. ^ "NASA". Science.nasa.gov. 15 June 2022.
  2. ^ a b "Greenhouse gases affect Earth's energy balance and climate". royalsociety.org.
  3. ^ "Climate action". un.org.
  4. ^ "Causes for rising emissions". climate.ec.europa.eu.
  5. ^ "Climate Change, Sources and Impacts" (PDF). environment.delhi.gov.in.
  6. ^ "World health organization". Who.int.
  7. ^ "Peace, dignity and equality on a healthy planet". un.org.
  8. ^ "Climate Change impacts". noaa.gov.
  9. ^ "Climate Reports". un.org.