"The greenhouse effect occurs when greenhouse gases in a planet's atmosphere cause some of the heat radiated from the planet's surface to build up at the planet's surface."
The process by which greenhouse gases trap heat from the sun in the Earth's atmosphere, leading to an increase in global temperatures.
Carbon dioxide (CO2): This is a greenhouse gas that forms a significant part of Earth's atmosphere, and is one of the primary contributors to global warming.
Methane: This is another greenhouse gas that is produced by natural sources such as wetlands, livestock, and termites, as well as human activities such as fossil fuel extraction and transportation.
The greenhouse effect: The process by which the atmosphere traps and re-radiates heat, keeping the Earth's surface warm and habitable.
Fossil fuels: Non-renewable fuels, such as oil, coal, and natural gas, which release greenhouse gases when burnt.
Climate change: The long-term changes to the Earth's climate, including temperature, precipitation, and sea levels, caused by human activities and natural factors.
Global warming: The increase in Earth's average surface temperature due to the greenhouse effect.
Greenhouse gas emissions: The release of gases that contribute to the greenhouse effect, including CO2, methane, and nitrous oxide.
Deforestation: The removal of trees and other vegetation, which reduces the amount of carbon dioxide that can be removed by photosynthesis.
Renewable energy: Energy sources that do not produce greenhouse gas emissions, such as solar, wind, and hydro power.
The Paris Agreement: The international agreement signed by over 190 countries, to limit global warming to below 2°C above pre-industrial levels.
Ocean acidification: The process by which carbon dioxide dissolves in the ocean, lowering the pH and making it more acidic.
Water resources: The availability of water for human consumption, agriculture, and other activities, which is affected by changes in climate.
Natural disasters: Extreme weather events, such as hurricanes, droughts, and floods, that can be caused by or exacerbated by climate change.
Human health: The impact of climate change on human health, such as increased incidence of heat stroke, asthma, and infectious diseases.
Carbon footprint: The total amount of greenhouse gases emitted by an individual, organization, or product.
"That difference reduces the rate at which a planet can cool off in response to being warmed by its host star."
"The Earth's average surface temperature would be about −18 °C (−0.4 °F) without the greenhouse effect."
"Earth's 20th-century average of about 14 °C (57 °F), or a more recent average of about 15 °C (59 °F)."
"Burning of fossil fuels has increased amounts of carbon dioxide and methane in the atmosphere."
"Global warming of about 1.2 °C (2.2 °F) has occurred since the industrial revolution."
"The global average surface temperature increasing at a rate of 0.18 °C (0.32 °F) per decade since 1981."
"The Sun has a surface temperature of 5,500 °C (9,900 °F), so it emits most of its energy as shortwave radiation in near-infrared and visible wavelengths (as sunlight)."
"Earth's surface has a much lower temperature, so it emits longwave radiation at mid- and far-infrared wavelengths (sometimes called thermal radiation or radiated heat)."
"A gas is a greenhouse gas if it absorbs longwave radiation."
"Earth's atmosphere absorbs only 23% of incoming shortwave radiation."
"Earth's atmosphere absorbs 90% of the longwave radiation emitted by the surface."
"Thus accumulating energy and warming the Earth's surface."
"Stars emit shortwave radiation that passes through greenhouse gases."
"Planets emit longwave radiation that is partly absorbed by greenhouse gases."
"Adding to greenhouse gases further reduces the rate a planet emits radiation to space."
"Raising its average surface temperature."
"In addition to naturally present greenhouse gases."
"As a result, global warming of about 1.2 °C (2.2 °F) has occurred since the industrial revolution."
"Greenhouse gases in a planet's atmosphere cause some of the heat radiated from the planet's surface to build up at the planet's surface."