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Professor John Sodeau, an expert in air pollution and climate change, contests the 80% pollutant capture figure. He has stated that the independent study by the Leibniz Institute for Tropospheric Research only mentioned a particle reduction of up to 30% for indoor measurements, and that no outdoor measurements are mentioned, besides that "the ...
Trees are important in regulating ecosystem processes; they contribute to filtering air pollution, microclimate regulation, carbon dioxide sequestration, and reducing climate change. [38] Trees can reduce the urban heat island effect through shading paved areas, aiding in airflow, and evapotranspiration .
Trees in tropical climates have, on average, larger, brighter, and more abundant leaves than non-tropical climates. A study of the girth of 70,000 trees across Africa has shown that tropical forests fix more carbon dioxide pollution than previously realized.
Tijuca Forest in Rio de Janeiro, Brazil. In many countries there is a growing understanding of the importance of the natural ecology in urban forests. There are numerous projects underway aimed at restoration and preservation of ecosystems, ranging from simple elimination of leaf-raking and elimination of invasive plants to full-blown reintroduction of original species and riparian ecosystems.
Wildlands Conservation Trust and Food & Trees for Africa (FTFA) are some of the oldest NGOs working to plant trees throughout South Africa—both established in the early 1990s. Greenpop is a national Social Enterprise established in 2010 which focusses on tree planting in sustainable urban greening and forest restoration in Sub-Saharan Africa .
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Air pollution can occur naturally or be caused by human activities. [4] Air pollution causes around 7 or 8 million deaths each year. [5] [6] It is a significant risk factor for a number of pollution-related diseases, including heart disease, stroke, chronic obstructive pulmonary disease (COPD), asthma and lung cancer.
Liquid 3 (also known as Liquid Trees) is a clean energy photobioreactor project designed to replace the function of trees in heavily polluted urban areas where planting and growing real vegetation is not viable. The project was designed by the Institute for Multidisciplinary Research at the University of Belgrade. The United Nations Development ...