Marine cloud brightening, the latest idea to fight climate change

The latest proposal for combating climate change is to whiten clouds in order to reflect sunlight back into space.

There are numerous scientific projects aimed at combating global warming. Climate change is becoming irreversible, according to scientists, thus urgent methods to cool the globe are becoming more vital.

In response to this, a group of American scientists created the Marine Cloud Brightening (MCB) Project, which tries to whiten the clouds. This approach allows sunlight to be bounced back into space, reducing global warming’s impact.

The researchers were prompted to conduct the study by the white stripes generated by ships on the water that can be seen from space. This mode of transportation produces particles capable of impacting clouds with enormous dark masses (stratocumulus clouds) near the ocean.

According to Faculty Washington, “the project is a partnership with various scientists and engineers to develop the technological and scientific knowledge of marine cloud glow as a technique that can assist reduce heat caused by manmade greenhouse gases.”

Artificially bleached clouds, according to the researchers, reflect sunlight better than regular or darker clouds. The US team wants to use this approach to return part of Earth’s sunlight emissions to space.

Artificial clouds would form in a similar way to natural clouds with this purpose in mind. When the relative humidity of the air exceeds 100 percent, water condensation develops. The droplets are then fused together by smaller particles (condensation nuclei) to form clouds.

The reflectance of the cloud rises when there is a significant concentration of droplets, according to the project’s researchers. The ‘Twomey effect’ is the name for this phenomenon.

Clouds having a higher concentration of tiny particles have a higher albedo, which means they are more reflective, according to the Twomey effect “The scientists describe their findings. The water trapped in the clouds would maintain the albedo high, making these clouds less likely to generate rain.”

The research team continues by discussing their project: “If the dry air at the cloud’s top mixes, however, the cloud may generate rain and have a lower albedo. The combined impact of the Twomey effect plus these cloud changes will be the total impact of the MCB.”

Initially, they want to use the MCB to add more salt particles as a condensation nucleus in the lower clouds that are close the seawater. The sprayed seawater will rapidly dry out in the air and produce microscopic salt particles as a result of this measure.

This strategy is more efficient than absorption by air or trees.

CO2 is absorbed from seawater by a novel carbon removal technique that works like seashells.

Sea clouds will then rise to the cloud layer and operate as droplet generators, producing smaller droplets than those created when waves break. As a result of this process, clouds will become 5-10% whiter. Artificial clouds will persist longer than natural clouds and reflect more sunlight back into space, in addition to being whiter.

To present, researchers have experimented with a variety of methods for introducing salt particles to clouds. They must, however, validate their models before recommending them as a climate change answer.

However, even if the MCB technique proves to be effective, it will never be able to replace the environmental policies that are already in place to reduce CO2 emissions.

Article Author Gerluxe Image: ecofriend