Timeline for Is the Earth going to evolve towards Mars' fate or Venus' fate?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 12, 2017 at 12:38 | comment | added | abeboparebop | Correct -- water vapor molecules are too heavy to escape Earth's atmosphere in meaningful quantities through the standard thermal mechanisms (Jean's escape). | |
| Jan 11, 2017 at 16:27 | comment | added | Parrotmaster | So the water vapor won't ever leave the earth's gravity until the earth itself is physically destroyed by the sun? | |
| Feb 3, 2016 at 8:42 | vote | accept | Nico | ||
| Feb 3, 2016 at 3:36 | comment | added | userLTK | This is essentially what I'd have said. A Mars outcome is unlikely because the Earth's gravity and magnetic field makes losing it's atmosphere and becoming a Mars very unlikley. Becoming a Venus, over a billion or two years, is entirely possible, but likely with more water than Venus, but closer to Venus than Mars certainly. The hotter sun and water being a greenhouse gas suggests a hot future in 1-2 billion years is highly possible. A repeat of "snowball earth" is also possible if CO2 drops low enough, but . . . I think that's unlikely. Technology could prevent either outcome too. | |
| Feb 2, 2016 at 20:49 | review | First posts | |||
| Feb 2, 2016 at 22:41 | |||||
| Feb 2, 2016 at 20:45 | history | answered | abeboparebop | CC BY-SA 3.0 |