However harsh and hostile Earth can become due to climate change. Rest assured, Mars is harsher and more hostile.

Whatever terraforming efforts we put into Mars to change that, would be easier, cheaper and more effective put into Earth.

Other factors favor Earth over Mars which are entirely unaffected by climate change:

• Earth’s gravity is ideal for us
• We have all our scientists, workers, vehicles, machines, resources and infrastructure here, not there
• Earth has a magnetic field which shields us from cancer-inducing cosmic radiation. Mars does not.
• Marth has sharp dust particles flying around, which are a nightmare for surface machinery. Earth does not.
• …

There literally is no planet B. Also, tomorrow (15th Sept) is another FFF strike (on Earth).