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Solar Geoengineering
Solar geoengineering is a climate technology that involves releasing materials into the air to reflect sunlight back into space, cooling the atmosphere. However, it is important to note that this method would only alleviate the symptoms of climate change and not address its root causes. For instance, Mexico has banned geoengineering after the start-up MakeSunsets attempted to commercialize the release of reflective sulfur dioxide into the atmosphere. “They’re violating the rights of communities to dictate their own future,” criticized one person. Luke Iseman, co-founder of MakeSunset, has a different perspective on the matter:
I don’t poll billions before taking a flight. I’m not going to ask for permission from every person in the world before I try to do a bit to cool Earth.
Unless humanity reduces greenhouse gas emissions, the Earth will continue to warm. A study published in the journal Earth System Dynamics shows that even if climate targets are met, geoengineering would be needed for at least a century to keep global temperature rise below 1.5°C. However, the environmental risks are uncertain because the reflective material, once released into the air, cannot be removed and alters the composition of the atmosphere. This, in turn, could affect the habitats of humans, plants, and animals.
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