Solar geoengineering could also reduce poleward shifts in species ranges, which has been posing serious risks to tropical fisheries. It could only be a potential supplement. For example, ocean fertilisation may have unwanted side effects on the ecology of the oceans, while growing biomass for BECCS, and large-scale tree-planting, would cause competition for land space for food crops, nature conservation and other uses. Another way to enhance albedo is to increase the reflectiveness of the land surface, for example by increasing the amount of white rooftops and light-coloured pavements in urban areas, or enhancing albedo on a larger scale by covering large areas of desert in reflective sheets, or planting crops, shrubs and grasses that are light in colour. Sorry, nothing was found for your search. Global Change Research Program (USGCRP) oversaw. It instead aims to break the link from concentrations to temperatures, thereby reducing some climate damages. The U.S. also published the Climate Science Special Report, which discussed geoengineering and called for further research. Geoengineering, also known as climate engineering, describes a range of ways to intervene on a large scale in the Earth’s natural systems – the oceans, soils and atmosphere – to directly combat climate change. Geoengineering is conventionally split into two broad categories: The first is carbon geoengineering, often also called carbon dioxide removal (CDR). The Intergovernmental Panel on Climate Change indicates that SRM methods could substantially reduce the global temperature rise, but that these techniques are unable to address the harmful effects of increased CO2 levels unrelated to temperature, such as ocean acidification. Also, solar geoengineering (largely) does not address ocean acidification. Approaches under consideration include: Bio-Energy with Carbon Capture and Storage (BECCS), which works by collecting the CO2 released from burning biomass (organic materials such as wood or crops) for power and pumping and storing it deep underground, while the biomass absorbs CO2 from the atmosphere as it grows; removing carbon from the atmosphere and storing it deep in the ocean; biochar, where carbon waste from agriculture is ‘charred’ and buried, to lock up its carbon in the soil; creating artificial trees that suck CO2 from the air and store it underground; and ocean fertilisation, adding nutrients to the ocean to encourage growth of CO2-eating plankton. Marine cloud brightening would attempt to brighten marine clouds to reflect more sunlight back into space. More information can be found on the Technology Factsheet: Solar Geoengineering from the Harvard Belfer Center and Center for Research on Computation and Society (CRCS). For example, it could reduce climate impacts such as extreme temperatures, changes in water availability, and intensity of tropical storms. Every year, the ocean absorbs about one-quarter of the carbon dioxide we emit into the atmosphere, changing the chemistry of the oceans and harming marine ecosystems. There have also been concerns pertaining to its ethics, governance, and potential impacts to the climate system. Space-based technologies would attempt to reflect a small fraction of sunlight away from the earth by positioning sun shields in space. What is geoengineering and how could it help tackle climate change? With time running out to cut emissions, take a look at the main technological planet-cooling methods proposed – and find out their pros and cons There is wide range of proposed geoengineering techniques.
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