3 ms·
> A greater surface temperature, about 5C more than Earth, was also considered to be better for life. Wonder how that corresponds to Paris agreement ideas...
by avmich 6y ago
> A greater surface temperature, about 5C more than Earth, was also considered to be better for life.
Wonder how that corresponds to Paris agreement ideas...
- perl4ever 6y agoAnother thing is that Earth is close to the upper limit of size to be practical to build rockets to get off of. Of course, a planet that's hotter and wetter presumably has more intense competition and it might be better for us if they can't achieve space travel.
- avmich 6y ago> Another thing is that Earth is close to the upper limit of size to be practical to build rockets to get off of. We have low orbital speed just below 8 km/s. A planet with another km/s extra required to get to orbit is quite likely still able to launch rockets. Then, we launch probes with total speed well above 11 km/s. While that speed is achieved over some time, which incurs gravitational losses, we can still assume that even higher low orbital speed can be achievable by chemical rockets.
- nextaccountic 6y agoLife would manage an increase of 5 degrees just fine. It's us that won't. https://en.wikipedia.org/wiki/Geologic_temperature_record#/media/File:All_palaeotemps.svg https://en.wikipedia.org/wiki/Geologic_temperature_record#/m...
- avmich 6y ago> It's us that won't. That's what I thought; still, the definition of habitability needs to change in rather peculiar way here.