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A satellite image of the Sahara, the world's largest hot desert and third largest desert after Antarctica and the Arctic. Desert greening is the process of afforestation or revegetation of deserts for ecological restoration (biodiversity), sustainable farming and forestry, but also for reclamation of natural water systems and other ecological systems that support life.
The United Nations' Intergovernmental Panel on Climate Change's (IPCC) Special Report on Climate Change and Land (SRCCL), also known as the "Special Report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems", [1] [2] is a landmark study from 2019 by 107 experts from 52 countries.
Non-forest areas, such as grasslands and savannas, also benefit the biosphere and humanity, and they need a different management strategy - they are not supposed to be forests. [ 8 ] [ 9 ] Afforestation critics argue that ecosystems without trees are not necessarily degraded, and many of them can store carbon as they are; for example, savannas ...
The United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa (UNCCD) is a Convention to combat desertification and mitigate the effects of drought through national action programs that incorporate long-term strategies supported by international cooperation and partnership arrangements.
Secondary mitigation strategies include changes to land use and removing carbon dioxide (CO 2) from the atmosphere. [ 1 ] [ 2 ] Current climate change mitigation policies are insufficient as they would still result in global warming of about 2.7 °C by 2100, [ 3 ] significantly above the 2015 Paris Agreement 's [ 4 ] goal of limiting global ...
The study found that, between 1982 and 2015, 6% of the world's drylands underwent desertification driven by unsustainable land use practices compounded by anthropogenic climate change. Despite an average global greening, anthropogenic climate change has degraded 12.6% (5.43 million km 2 ) of drylands, contributing to desertification and ...
Climate change would reduce mean yields for 11 main world crops - millet, eld pea, sugar beet, sweet potato, wheat, rice, maize, soybean, groundnut, sunflower, and rapeseed - by 15% in Sub-Saharan Africa and 11% in the Middle East and North Africa by 2050 if carbon fertilization is not used. [35] Desertification has reduced agricultural output ...
“Microbial control of land desertification includes organisms such as mosses, lichens, cyanobacteria and slime molds to restore soil nutrients, The use of engineered biocrustâforming cyanobacteria with these traits (vs. nonâengineered) has the effect of restoring soil fertility. potential to further increase soil fertility and to reduce ...