Bold ideas to cool the planet | BBC Ideas

Can reflecting sunlight help slow climate change? 🌍☀️ Subscribe to BBC Ideas 👉 https://bbc.in/2F6ipav As global temperatures rise faster than at any point in the Earth's recorded history, scientists are exploring bold new ideas to cool the planet. One of the most controversial is solar radiation modification (SRM) — a form of solar geoengineering designed to reflect some of the Sun’s energy back into space. In this video, astrophysicist Josie Peters explains how techniques like marine cloud brightening and stratospheric aerosol injection could work — and the potential risks and ethical questions they raise. Made by Thread & Grain in partnership with @royalsociety 00:00 Climate change recap 00:40 Solar radiation modification 01:20 Ways we could we reflect sunlight 01:54 Marine Cloud Brightening 02:40 Stratospheric Aerosol Injection 03:58 Would these ideas work - and what are the risks? 04:42 Conclusion ____________________________ Do you have a curious mind? You’re in the right place. Our aim on BBC Ideas is to feed your curiosity, to open your mind to new perspectives, and to leave you that little bit smarter. So dive in. Let us know what you think. And make sure to subscribe! 👉https://bbc.in/2F6ipav Visit our website to see all of our videos: bbc.co.uk/ideas #bbcideas #ClimateChange #SolarRadiationModification #ClimateScience #ScienceEducation #ClimateDebate