What would it take to build a self-sustaining astronaut ecosystem on Mars?

You know you also need other infrastructure for people to live there.

And you need to get all of that to mars.

And you need to keep up the logistics between two different planets, it's not just send one or two payloads and you're done.

Yeah I was gonna say “one dude and a bag of shit”

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).

I disagree that Martian colonization in inevitable. I'd like to see it, but I'd also like to end poverty.

If we can prioritize sustainability research and development by calling it a Mars mission I'm not inherently opposed.

There's basically no chance of Mars ever being more habitable then Earth, the atmosphere is 100x thinner there. Like even in the worst climate change scenario you can imagine we'd still be better off living here.

You're right, it's totally easier to colonize another planet than it is to mitigate the effects of climate change 🤦

People in power or with money might go. You and me will stay so we better treat earth right :)