You can also send up in rockets into space billions of microscopic pieces of tinfoil which will reflect sunlight.
Pretty cheap way to reduce the heat reaching the Earth.
But, I’d rather we take our chances without trying to affect the planet. First, do no harm.
That would probably trash satellite TV, phone and internet services, space surveillance radar (for missile defense), astronomical observation (optical and radio), GPS, Earth observation and Earth science...
So of course the global warming and climate change frauds (can't even begin to call the scientists) will probably try to do this.