[threeleftsmakearight]

Must have been those Martian SUV's

[samtheman]

Dried up riverbeds and other evidence imply that Mars once had enough water to fill a global ocean more than 600 metres deep, together with a thick atmosphere of carbon dioxide that kept the planet warm enough for the water to be liquid. But the planet is now very dry and has a thin atmosphere.

Mars once had it all. Carbon dioxide. Global warmth. Deep oceans. Then Democrats evolved and took away their global warming and now all that's left is dry rot. (Sort of like Pelosi's face.)

[taxesareforever]

All one need to is look thru their home telescope and see those huge water tanks taking up space on Mars. You would think that they would move them out of the neighborhood. Or maybe those are CO2 tanks collecting all our greenhouse gases. /s

[Darksheare]

*In AH-nold voice*

Mahrs Cohre iz eyze! Staht the re-actOR!

[ex-snook]

Maybe they had global cooling.

[RockinRight]

Nice picture.

Let's move there and leave the liberals here.

[Hegemony Cricket]

Too many dry martinis...

[NonValueAdded]

Well, duh, they have all those canals :)

[bamahead]

Ping

[Little Pig]

"Either some other process removed the water and CO2 or they are still present and hidden somewhere on Mars, probably underground, Barabash says."


Maybe someone came by and "stripmined" the planet's biosphere?

[Hiryusan]

Here's another theory.....

Martian citizen were told all the CO2 in the atmosphere was causing 'Global Warming', and something must be done about it NOW.....

They all agreed and worked vigilantly to reduce CO2 levels and cool their world.....

and it worked.

[Kevmo]

Bump for later reading

[MaxMax]

It was blown away by the solor winds after evaporation.

[KevinDavis]

MARSWARD HO!!!

[SunkenCiv]

this may help illuminate the discussion:

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[Larry Lucido]

Great! If we can mine it, and transport it here, we'll never run out of water!

[Yo-Yo]

According to Richard Hoagland, Mars once was the captured satellite of another planet. That planet exploded, stripping away Mars' atmosphere, and creating the asteroid belt.

Kook. An interesting read, but a kook nonetheless.

[Teacher317]

IF there are water reservoirs underground on Mars, then Mars just became the solar system's gas station (until we get to Europa... then it becomes the local Gas-n-Go). Plentiful hydrogen and oxygen, little gravitational pull (1/3 of earth)... anyone know if the atmosphere is as dense as Earth's (for re-entry burn-up problems for returning orbital tankers)?

[r9etb]

If this rate has held steady over Mars's history, it would have removed just a few centimetres of water, and a thousandth of the original CO2

Why would they assume this?

Much more likely the rate of loss would probably be an exponential decay (example below):

Which would mean that they're looking at the tail end.

[Trajan88]

Good... maybe north Texas can tap it since the local governments aren't limiting growth (like they should); however, there's less and less water to go around - grass was burnt to a crispy last summer and home foundations are cracking under the stress of little water.