I'm trying to imagine a world where terraforming planets and intersteller travel are solved problems but keeping Earth hospitable is beyond our capability. Does

I'm trying to imagine a world where terraforming planets and intersteller travel are solved problems but keeping Earth hospitable is beyond our capability. Doesn't seem plausible. But on the flip side, I can clearly see how if we fail to keep this planet livable we have no hope of reaching other livable worlds.