☀️ Could "dimming the sun" help turn down global heating?
🌡 It might sound like science fiction, but some are exploring solar geoengineering tech to stop temperatures rising.
⭕️ They say it's relatively cheap and simple - while others warn it could be catastrophic. Why? 🧵
📈 @WMO projects the planet could warm by 1.5C within the next 5 years - at least temporarily: a foretaste of what things would be like if global limits are breached.
To tackle this, a Climate Overshoot Commission of 16 experts was launched to look at new tech, like sun-dimming.
🕶 One technology is "stratospheric aerosol injection" - or SAI.
🧴 It involves spraying chemicals into the atmosphere to reflect away some of the sun's warmth, like how volcanic eruptions darken the sky.
🛩 Special planes would deploy it, costing a few billion dollars a year.