Headed to Mars? Pack Some AerogelYou Know, for Terraforming

Mars attacks. Its wisp of an atmosphere means that if you were standing on the surface, it’d be a race to see if suffocation or the sub-zero temperature killed you first. But that’s all tarring the red planet with too broad a brush, perhaps. It’s not all a rusty, frozen hellscape. At the mid-latitudes, just inches down into the ground, you’d find ice—frozen gases like carbon dioxide, even frozen water. If only Mars were warmer, wetter, more oxygen-y, the would-be Martians whine. If only people wouldn’t have to carry bubbles of home with them to colonize Mars and make manifest humanity’s destiny among the stars, or something. As most humans busily make Earth less and less habitable, a few humans …

CO2 in the atmosphere just exceeded 415 parts per million for the first time in human history

The human race has broken another record on its race to ecological collapse. Congratulations humanity! For the first time in human history — not recorded history, but since humans have existed on Earth — carbon dioxide in the atmosphere has topped 415 parts per million, reaching 415.26 parts per million, according to sensors at the Mauna Loa Observatory, a research outpost of the National Oceanic and Atmospheric Agency. This is the first time in human history our planet's atmosphere has had more than 415ppm CO2. Not just in recorded history, not just since the invention of agriculture 10,000 years ago. Since before modern humans existed millions of years ago. We don't know a planet like this. https://t.co/azVukskDWr — Eric Holthaus …