Necessity is the mother of invention
An old but very true saying. They once thought AIDS was impossible to cure but enough really smart people figured it out. I'm hopeful something will be discovered that can reduce CO2 levels in the atmosphere. Not confident, but hopeful someone will come up with something, anything, that works. An aerosol type spray released from airplanes that reduces CO2 but doesn't harm anything else. Yeah, wishfull thinking I know.