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Title: Potential of local bio-geoengineering to mitigate dangerous temperature increases in a global warming scenario
Author: Nogués Mestres, Salvador
Azcón Bieto, Joaquín
Keywords: Adaptació (Biologia)
Escalfament global
Efecte del clima sobre les plantes
Adaptation (Biology)
Global warming
Vegetation and climate
Issue Date: 2013
Publisher: OMICS Publishing Group
Abstract: Crops and forests are already responding to rising atmospheric carbon dioxide and air temperatures. Increasing atmospheric CO2 concentrations are expected to enhance plant photosynthesis. Nevertheless, after long-term exposure, plants acclimate and show a reduction in photosynthetic activity (i.e. down-regulation). If in the future the Earth"s temperature is allowed to rise further, plant ecosystems and food security will both face significant threats. The scientific community has recognized that an increase in global temperatures should remain below 2°C in order to combat climate change. All this evidence suggests that, in parallel with reductions in CO2 emissions, a more direct approach to mitigate global warming should be considered. We propose here that global warming could be partially mitigated directly through local bio-geoengineering approaches. For example, this could be done through the management of solar radiation at surface level, i.e. by increasing global albedo. Such an effect has been documented in the south-eastern part of Spain, where a significant surface air temperature trend of -0.3°C per decade has been observed due to a dramatic expansion of greenhouse horticulture.
Note: Reproducció del document publicat a:
It is part of: Journal of Earth Science & Climatic Change, 2013, vol. 4, p. 143
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ISSN: 2157-7617
Appears in Collections:Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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