Page 63 - CIJ Dec 2023 - Digital Edition
P. 63

Making a Point














                          Solar Panels Outperform Trees in
                          Climate Change Mitigation






                            n a study, researchers have    The study involved measuring   The authors of the study
                            found that photovoltaic (PV)   surface albedo at a solar field in   acknowledge that forests
                            fields are more effective than   the hyper-arid Arava valley in   provide many benefits beyond
                            afforestation in mitigating   Israel and at the Yatir forest at   climate change mitigation,
                         Iglobal climate change,         the northern edge of the Negev   including ecosystem,
                         especially in semiarid regions.   desert. The researchers used this   climate regulation, and
                         The study, published in PNAS    data to calculate the break-even   social services. However,
                         Nexus, reveals that PV fields   time required to balance the   the findings emphasise the
                         begin benefiting from climate   positive radiative forcing due to   significant role of solar
                         change mitigation in about 2.5   reduced albedo and the negative   energy in the fight against
                         years, which is over fifty times   radiative forcing due to carbon   global warming, especially in
                         faster than forests.            emission suppression of PV    regions where afforestation is

                           While forests are known       power generation or carbon    less effective.
                         for their carbon sequestration   sequestration by forests.      This study sheds new
                         capabilities, the study highlights   The results indicated that   light on the debate between
                         the efficiency of PV energy in   in semiarid land, photovoltaic   the use of solar panels and
                         reducing reliance on fossil fuels   fields break even and begin   planting trees as strategies
                         and its direct impact on climate   offering climate change    for combating climate
                         change mitigation. The research   mitigation benefits after about   change. It underscores the
                         was conducted by comparing the   2.5 years. In humid lands, the   importance of considering
                         effectiveness of PV fields and   gap between the effectiveness   regional characteristics and
                         afforestation, particularly focusing   of PV fields and forests is not as   the efficiency of different
                         on their impact on surface albedo   wide, but solar panels continue   approaches in climate change
                         and carbon emission suppression.  to have the advantage.      mitigation strategies.

























                                                                                                                 CIJ


                                                                             Clean India Journal•DECEMBER 2023  63
                                                                                     www.cleanindiajournal.com
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