WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
Nature The World Movies USA Top Art Fine & Rare History Ivy & Inquiry
Stratospheric aerosol injection
Videos
Stratospheric aerosol injection is a proposed method of solar geoengineering to reduce global warming. This would introduce aerosols into the stratosphere to create a cooling effect via global dimming
Smoke aerosol from wildfires in Quebec, Canada; eastern Long Island, NY, June 7, 2023 (local time approximately 2 pm). Nearest trees are about 500 m.
Smoke aerosol from wildfires in Quebec, Canada; eastern Long Island, NY, June 7, 2023 (local time approximately 2 pm). Nearest trees are about 500 m.
Mist and fog are aerosols
Mist and fog are aerosols
Proposed tethered balloon to inject aerosols into the stratosphere
Proposed tethered balloon to inject aerosols into the stratosphere
This graph shows the baseline radiative forcing under three different Representative Concentration Pathway scenarios, and how it would be affected by
This graph shows the baseline radiative forcing under three different Representative Concentration Pathway scenarios, and how it would be affected by the deployment of SAI, starting from 2034, to halve the speed of warming by 2100, to halt the warming, or to reverse it entirely.
Global dimming
Videos
Global dimming is a decline in the amount of sunlight reaching the Earth's surface. It is caused by atmospheric particulate matter, predominantly sulfate aerosols, which are components of air pollutio
Stratospheric aerosol injection
…or solar radiation modification) to reduce global warming. This would introduce aerosols into the stratosphere to create a cooling effect via global dimming and increased albedo, which occurs naturally from volcanic winter. It has been claimed that stratospheric aerosol injection, at a moderate intensity…
The observed trends of global dimming and brightening in four major geographic regions. The dimming was greater on the average cloud-free days (red li
The observed trends of global dimming and brightening in four major geographic regions. The dimming was greater on the average cloud-free days (red line) than on the average of all days (purple line), strongly suggesting that sulfate aerosols were the cause.
If smoke from wildfires mixes into clouds, it darkens them, decreasing their albedo. If there are no clouds, then smoke can increase albedo, particula
If smoke from wildfires mixes into clouds, it darkens them, decreasing their albedo. If there are no clouds, then smoke can increase albedo, particularly over oceans.
Sun-blocking aerosols around the world steadily declined (red line) since the 1991 eruption of Mount Pinatubo, according to satellite estimates.
Sun-blocking aerosols around the world steadily declined (red line) since the 1991 eruption of Mount Pinatubo, according to satellite estimates.
Air pollution, including from large-scale land clearing, has substantially increased the presence of aerosols in the atmosphere when compared to the p
Air pollution, including from large-scale land clearing, has substantially increased the presence of aerosols in the atmosphere when compared to the preindustrial background levels. Different types of particles have different effects, and there is a variety of interactions in different atmospheric layers. Overall, they provide cooling, but complexity makes the exact strength of cooling very difficult to estimate.