The first issue is developing the technology to warm the caps. Related: What would it be like to live on Mars?
Unfortunately, that simple idea probably isn't going to work. All we would need to do is kick back, watch and wait for a few centuries for physics to do its thing and turn Mars into a much less nasty place. If we could somehow warm the caps, that might release enough carbon into the atmosphere to kick-start a greenhouse warming trend. We can't access the OG Martian atmosphere, because it's completely lost to space, but Mars does have enormous deposits of water ice and frozen carbon dioxide in its polar caps, and some more laced just underneath the surface across the planet. The increased heat encourages moisture to leave the oceans and play around as a vapor in the atmosphere, which adds its own blanketing layer, adding to the increase in temperature, which evaporates more water, which warms the planet more, and before you know if prime beachfront property is now better suited as an underwater submarine base.īut if it works on Earth, maybe it could work on Mars. We pump out a lot of carbon dioxide, which is really good at letting sunlight in and preventing thermal radiation from escaping, so it acts like a giant invisible blanket over Earth. Inadvertently, through our centuries of carbon emissions, we've raised the surface temperature of Earth through a simple greenhouse mechanism. Thankfully (or unfortunately, depending on your point of view), we humans have plenty of experience in warming up planets.
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