Climate geoengineering refers to large-scale schemes for intervention in the earth's oceans, soils and atmosphere with the aim of reducing the adverse effects of climate change.
The first category of scheme- those designed to remove CO2 from the air- include machines (sometimes called "artificial trees") that pull the gas from the atmosphere using plastic polymers.
Other related schemes-sometimes but not always described as geo-engineering- involve harnessing the capacity of trees and plants to absorb CO2 from the air.
In the second category- schemes designed to reduce the amount of sunlight reaching Earth and proposals include using unmanned ships to increase above-ocean cloud cover by spraying sea water into the air and many other.
Climate geoengineering refers to large-scale schemes for intervention in the earth's oceans, soils and atmosphere with the aim of reducing the adverse effects of climate change.
Geoengineering aims to tackle climate change by removing CO2 from the air or limiting the sunlight reaching the planet.
The first category of scheme- those designed to remove CO2 from the air- include machines (sometimes called "artificial trees") that pull the gas from the atmosphere using plastic polymers.
Other proposals seek to increase the amount of CO2 absorbed by the oceans – for example by adding large quantities of lime to the water.
Other related schemes-sometimes but not always described as geo-engineering- involve harnessing the capacity of trees and plants to absorb CO2 from the air.
In the second category- schemes designed to reduce the amount of sunlight reaching Earth and proposals include using unmanned ships to increase above-ocean cloud cover by spraying sea water into the air and many other.
Other schemes include designing machines that suck CO2 directly out of the air.