How do you know nature will survive? Records of previous climate changes indicate the change occurred more gradually in tens of thousands of years, not within 200 years. So nature may not have time to adapt.
Also the living earth may have just been lucky the last time drastic climate change occurred; it's not that we have thousands of earths to exclude survivorship bias.
BS. You had a fucking meteorite wiping out the dinosaurs in a year or so. Everyone who has a tiny bit of education has heard about this. Everyone who has a bit more education knows that sterilizing Earth will take much more concerted effort than a nuclear war.
Venus is like Earth the same way both a table and a cow have four legs.
From the announcement you read only the parts how Venus and Earth are similar, but not how they differ. The runaway effect was possible because Venus had less water, is closer to the Sun, and has no magnetic shield. The runaway effect you imagine on Earth needs significant changes in its chemical composition, in its mass, or its physical attributes like magnetic field and thermal input. Humanity is still far from doing something like that. Weight until we start building a cosmic mirror, have self-sustained nuclear reaction on a global scale, or build an earth spanning superconductor network with massive energy volume that would counter the magnetosphere.
