Pour the money wasted on mitigating CO2 into nuclear fusion research. (judithcurry.com)
Such huge powers are interesting for nonlinear optics in an extreme regime, e.g. for high harmonic generation, but also for nuclear fusion research. (rp-photonics.com)
An even better long term solution might be to construct some mini-Suns right here on Earth — that's effectively the goal of nuclear fusion research, though practical implementation is still a ways off. (sciencemag.org)