What are geoengineering aerosols?

What are geoengineering aerosols?

Stratospheric aerosol injection is a solar radiation management (srm) geoengineering or climate engineering approach that uses tiny reflective particles or aerosols to reflect sunlight into space in order to cool the planet and reverse or stop Global Warming.

What do Geoengineers do?

Defined as “the deliberate large-scale manipulation of an environmental process that affects the earth’s climate in an attempt to counteract global warming,” geoengineering can broadly be divided into two very different subcategories: 1) carbon dioxide removal, which seeks to remove carbon from the atmosphere in order …

How does aerosol injection work?

Stratospheric Aerosol Injection (SAI) is a theoretical solar geoengineering proposal to spray large quantities of tiny reflective particles into the stratosphere, an upper layer of the Earth’s atmosphere, in order to cool the planet by reflecting sunlight back into space.

Is geoengineering banned?

More than 190 nations agreed last week to ban geoengineering as part of action under a United Nations treaty to protect the diversity of life on Earth.

What is sulfate geoengineering?

Sulfate geoengineering is a proposed method to partially counteract the global radiative forcing from accumulated greenhouse gases, potentially mitigating some impacts of climate change.

How long do aerosols stay in the air?

Our results indicate that the long-time (hours) and long-distance airborne transmission of respiratory viruses (e.g., SARS-CoV-2) are plausible via air movement since the aerosols expelled from speaking can remain suspended in the air for up to 9 h in a stagnant environment with a half-life of 87.2 min.

What is geoengineering weather?

Geoengineering is the term used to describe the manipulation of weather to combat the effects of global warming. These methods are generally split into two categories– carbon dioxide removal and solar geoengineering.

Is geoengineering regulated?

There are no international rules or institutions specifically on geoengineering. The decision of the Conference of the Parties to the Biodiversity Convention (CBD) in October 2010 is the first regulatory measure at this level that addressed geoengineering in general.

What are some risks of geoengineering?

Not only is solar geoengineering largely ineffective, it could be dangerous. The combined effect of greenhouse gases and solar geoengineering could create a real mess — potentially destabilizing weather and climate patterns in unforeseen ways. That could make things even worse.

Is stratospheric aerosol injection a good idea?

Research into climate intervention methods, including stratospheric aerosol injection (SAI), is controversial for good reason. It has to be clear that at best SAI would be a complement to emission reductions, which have to be the absolute priority, and probably carbon dioxide removal.