According to a new study which was published in the journal Environmental Science & Technology has discovered that, if land use is taken into account, installing more solar panels or by investing more in solar energy is more climate-efficient than planting trees in the same area.
The research shows that while photovoltaic fields break even and begin offering climate change mitigation benefits after about 2.5 years, afforestation can take many years to reach its full potential.
The difference between the advantages of trees and solar panels in fighting climate change is because of how they work.
Trees, in forests, gradually remove carbon dioxide from the air, which helps to reduce the greenhouse gas over time. Solar panels, on the other hand, directly reduces the greenhouse gas emissions by replacing fossil fuel electricity with clean, renewable energy.
However, both trees and solar panels can absorb more sunlight and help to prevent global warming by darkening the land surface.
A study measured this reflection of sunlight, called surface albedo, in a solar field in Israel’s Negev desert and compared it to data from a close by forest.
The study tries to find out which method will balance the negatives and the positives. According to the results it showed that solar panels achieve this balance faster than planting trees, especially in semiarid regions.
While solar energy has a fast positive impact, the study recognizes the overall benefits of forests. Besides reducing carbon, forests provide important services for ecosystems, regulate local climates, and offer social benefits such as recreation and protecting biodiversity.
So, even though solar energy has advantages, we can’t ignore the importance of trees in the bigger picture.
Presently forests absorb close to a third of humanity’s annual carbon emissions, so it’s very important to safeguard this capability, and prevent the kind of wide-scale deforestation that takes place in tropical regions.
Furthermore, forests play an important role in the global rain cycle by maintaining biodiversity and in many other environmental and social situations.
Therefore, it’s concluded that the Earth’s forests must be protected and that the best solution to the climate crisis is to integrate the planting and rehabilitation of forests in humid regions and installing fields of solar panels in arid regions.
