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Ice–albedo feedback is a climate change feedback, where a change in the area of ice caps, glaciers, and sea ice alters the albedo and surface temperature of a planet. Because ice is very reflective, it reflects far more solar energy back to space than open water or any other land cover. [1] It occurs on Earth, and can also occur on exoplanets ...
Such a group of small sunshades that blocks 2% of the sunlight, deflecting it off into space, would be enough to halt global warming. [10] If 100 tonnes of disks were launched to low Earth orbit every day, it would take 550 years to launch all of them.
As a method to address global warming, the IPCC 2018 report indicated that the potential for global temperature reduction was "small," yet was in high agreement over the recognition of temperature changes of 1-3 °C on a regional scale. [1] Limited application of reflective surfaces can mitigate urban heat island effect. [6]
Details of how clouds interact with shortwave and longwave radiation at different atmospheric heights [17]. Clouds have two major effects on the Earth's energy budget: they reflect shortwave radiation from sunlight back to space due to their high albedo, but the water vapor contained inside them also absorbs and re-emits the longwave radiation sent out by the Earth's surface as it is heated by ...
Clouds have both cooling and warming effects. They have a cooling effect insofar as they reflect sunlight (as measured by cloud albedo), and a warming effect, insofar as they absorb longwave radiation. For low clouds, the reflection of solar radiation is the larger effect; so, these clouds cool the Earth.
Schematic with five proposed methods for solar radiation modification technologies. Solar radiation modification or solar radiation management (SRM), also known as solar geoengineering, are planetary-scale approaches to limit global warming by reducing the greenhouse effect, the atmospheric trapping of outgoing thermal radiation that would leave Earth to outer space.
Scientists warn that if carbon dioxide and other greenhouse gas emissions continue to rise at their current rates, Earth’s temperatures could increase dramatically in future decades, leading to catastrophic and irreversible climate change. The 10 largest emitters produced about 26.4 gigatons of carbon dioxide in 2013.
Solar radiation management works to directly mitigate the effects of atmospheric warming due to the burning of fossil fuels and subsequent release of greenhouse gases. [6] Space mirrors fall under this category of geoengineering as they work to block solar radiation and lower the warming effects from the Sun. [6]