https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:global-change/x0b0e430a38ebd23f:greenhouse-effect/v/greenhouse-effect-and-greenhouse-gases 2024-06-28T21:00:15.59562973Z Greenhouse effect and greenhouse gases The greenhouse effect, driven by gases like carbon dioxide, methane, and water vapor, is essential for maintaining Earth's habitable temperatures. However, excessive concentrations of these gases—particularly due to human activities—can lead to global warming and climate change. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/27e417aa-bb45-422d-bb99-7e0e28da1250_1280_720_base.png Greenhouse effect and greenhouse gases The greenhouse effect, driven by gases like carbon dioxide, methane, and water vapor, is essential for maintaining Earth's habitable temperatures. However, excessive concentrations of these gases—particularly due to human activities—can lead to global warming and climate change. https://cdn.kastatic.org/ka-youtube-converted/YpfxiDktSoI.mp4/YpfxiDktSoI.mp4 419 The greenhouse effect and its consequences https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:global-change/x0b0e430a38ebd23f:greenhouse-effect/e/greenhouse-effect 2025-12-18T00:30:56.558401705Z Greenhouse effect Apply your understanding of greenhouse effect in this set of free practice questions aligned to AP standards. exercise https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:global-change/x0b0e430a38ebd23f:climate-change/v/climate-emergency-feedback-loops-albedo 2025-08-08T21:39:42.49220884Z Climate emergency: feedback loops - albedo Climate change is setting off dangerous feedback loops at the Poles. The melting of Arctic ice and snow decreases Earth' ability to reflect the Sun's rays, leading to further heating and melting of ice and snow. In Antarctica, the warmer climate is melting ice sheets, leading to raised sea levels, which melts ice sheets further in an amplifying loop. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/6ec1ba8b-47e9-41c4-a470-0ad8a164d756_1280_720_base.png Climate emergency: feedback loops - albedo Climate change is setting off dangerous feedback loops at the Poles. The melting of Arctic ice and snow decreases Earth' ability to reflect the Sun's rays, leading to further heating and melting of ice and snow. In Antarctica, the warmer climate is melting ice sheets, leading to raised sea levels, which melts ice sheets further in an amplifying loop. https://cdn.kastatic.org/ka-youtube-converted/HNqTxBHgC0Y.mp4/HNqTxBHgC0Y.mp4 636 The greenhouse effect and its consequences https://www.khanacademy.org/science/grade-8-science-tx/x3cd7525f789ab4f1:climate-change/x3cd7525f789ab4f1:human-activities-and-climate-change/a/human-activities-and-climate-change 2025-07-09T20:41:48.967358068Z Human activities and climate change Learn about how human activities—including the release of greenhouse gases, deforestation, and urbanization—can affect climate. article https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-and-society/x87d03b443efbea0a:human-impacts-on-the-environment/v/human-impacts-on-the-environment 2025-05-07T17:11:10.976262835Z Human impacts on the environment Human activities—such as land use, water use, and deforestation—often have negative impacts on the environment. These impacts worsen as the human population grows and consumes more resources. Science can help identify ways to reduce our impacts, but it is ultimately up to us to take action. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/5d88359d-4b8d-407f-86f3-06c1792814a4_1280_720_base.png Human impacts on the environment Human activities—such as land use, water use, and deforestation—often have negative impacts on the environment. These impacts worsen as the human population grows and consumes more resources. Science can help identify ways to reduce our impacts, but it is ultimately up to us to take action. https://cdn.kastatic.org/ka-youtube-converted/ThpzFgoGrKE.mp4/ThpzFgoGrKE.mp4 308 The greenhouse effect and its consequences https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:biodiversity-and-human-impacts/x230b3ff252126bb6:global-change-biology/a/global-change 2024-10-23T17:15:06.452695632Z Global change Learn about how human activities result in planetary-scale changes among Earth's natural systems. article