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= Climate Change =

Climate change, also known as global warming, refers to the long-term shift in global or regional climate patterns, primarily caused by the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.<ref name="NASA-Climate">{{cite web |url=https://climate.nasa.gov/ |title=Climate Change: Vital Signs of the Planet |publisher=NASA |access-date=2023-10-26}}</ref> This phenomenon has far-reaching effects on the environment, human societies, and global economies.

== Causes of Climate Change ==

The primary driver of current climate change is the [[Greenhouse effect]], an increase in the concentration of greenhouse gases in the Earth's atmosphere. These gases, which include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), trap heat and cause a warming effect. The main sources of these gases are:

=== Burning of Fossil Fuels ===
The combustion of coal, oil, and natural gas for energy production, transportation, and industrial processes is the largest contributor to greenhouse gas emissions.<ref name="IPCC-AR6">{{cite web |url=https://www.ipcc.ch/report/ar6/wg1/ |title=Climate Change 2021: The Physical Science Basis |publisher=Intergovernmental Panel on Climate Change |access-date=2023-10-26}}</ref>

=== Deforestation ===
The clearing of forests for agriculture, urbanization, and other purposes reduces the planet's capacity to absorb CO2, as trees play a crucial role in carbon sequestration.<ref name="FAO-Deforestation">{{cite web |url=http://www.fao.org/forest-resources-assessment/en/ |title=Global Forest Resources Assessment |publisher=Food and Agriculture Organization |access-date=2023-10-26}}</ref>

=== Agriculture ===
Agricultural practices, including livestock farming and the use of fertilizers, contribute to methane and nitrous oxide emissions.<ref name="EPA-Agri">{{cite web |url=https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions#agriculture |title=Sources of Greenhouse Gas Emissions |publisher=United States Environmental Protection Agency |access-date=2023-10-26}}</ref>

=== Industrial Processes ===
Certain industrial activities, such as cement production and the manufacturing of chemicals, also release significant amounts of greenhouse gases.<ref name="IEA-Industry">{{cite web |url=https://www.iea.org/reports/tracking-industry-2023 |title=Tracking Industry 2023 |publisher=International Energy Agency |access-date=2023-10-26}}</ref>

== Effects of Climate Change ==

The consequences of climate change are diverse and widespread, affecting both natural and human systems.

=== Rising Temperatures ===
Global average temperatures are increasing, leading to more frequent and intense heatwaves, which can cause heat stroke and other health issues.

=== Melting Ice and Rising Sea Levels ===
Melting glaciers and ice sheets are contributing to rising sea levels, which threaten coastal communities and ecosystems.<ref name="NOAA-SeaLevel">{{cite web |url=https://www.climate.gov/news-features/understanding-climate/climate-change-global-sea-level |title=Climate Change: Global Sea Level |publisher=National Oceanic and Atmospheric Administration |access-date=2023-10-26}}</ref>

=== Extreme Weather Events ===
Climate change is increasing the frequency and intensity of extreme weather events, such as hurricanes, droughts, floods, and wildfires.<ref name="WMO-Extreme">{{cite web |url=https://public.wmo.int/en/our-mandate/climate/extreme-weather |title=Extreme Weather |publisher=World Meteorological Organization |access-date=2023-10-26}}</ref>

=== Changes in Ecosystems ===
Changes in temperature and precipitation patterns are altering ecosystems, leading to biodiversity loss and shifts in species distribution.

=== Impacts on Human Health ===
Climate change has direct and indirect effects on human health, including heat-related illnesses, the spread of vector-borne diseases, and respiratory problems due to air pollution.

== Mitigation and Adaptation ==

Addressing climate change requires a two-pronged approach: mitigation and adaptation.

=== Mitigation ===
Mitigation efforts focus on reducing greenhouse gas emissions, including:

* Transitioning to [[Renewable energy]] sources, such as solar, wind, and geothermal power.
* Improving energy efficiency in buildings, transportation, and industry.
* Implementing carbon capture and storage technologies.
* Promoting sustainable land use and forest management.

=== Adaptation ===
Adaptation measures aim to reduce the vulnerability of communities and ecosystems to the impacts of climate change, such as:

* Developing drought-resistant crops and water management strategies.
* Building seawalls and other infrastructure to protect coastal areas.
* Improving public health systems to deal with climate-sensitive diseases.
* Establishing early warning systems for extreme weather events.

== International Efforts ==

International cooperation is crucial for addressing climate change. The [[Paris Agreement]], adopted in 2015, sets out a global framework for reducing greenhouse gas emissions and adapting to the impacts of climate change.<ref name="UNFCCC-Paris">{{cite web |url=https://unfccc.int/process-and-meetings/the-paris-agreement/the-paris-agreement |title=The Paris Agreement |publisher=United Nations Framework Convention on Climate Change |access-date=2023-10-26}}</ref> Many countries have also pledged to achieve net-zero emissions by 2050, but there is more to do.

== See also ==
* [[Greenhouse effect]]
* [[Renewable energy]]
* [[Paris Agreement]]
* [[Deforestation]]
* [[Pollution]]

== References ==
<references/>

[[Category:Climate]]
[[Category:Environment]]
[[Category:Global Issues]]
Written by Gemini

Climate Change - Revision history

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