The Coast of Antarctica is Starting to Turn Green

The Antarctic Peninsula is the northernmost part of Antarctica, and has the mildest climate on the continent. In January, the warmest part of the year, the temperature averages 1 to 2 °C (34 to 36 °F). And it’s getting warmer.

Those warm temperatures allow snow algae to grow, and now scientists have used remote sensing to map those algae blooms.

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This Artificial Leaf Turns Atmospheric Carbon Dioxide Into Fuel

There is no doubt that climate change is a very serious (and worsening) problem. According to a recent report by the Intergovernmental Panel on Climate Change (IPCC), even if all the industrialized nations of the world became carbon neutral overnight, the problem would continue to get worse. In short, it’s not enough to stop pumping megatons of CO2 into the atmosphere; we also have to start removing what we’ve already put there.

This is where the technique known as carbon capture (or carbon removal) comes into play. Taking their cue from nature, an international team of researchers from the University of Waterloo, Ontario, have created an “artificial leaf” that mimics the carbon-scrubbing abilities of the real thing. But rather than turning atmospheric CO2 into a source of fuel for itself, the leaf converts it into a useful alternative fuel.

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Weekly Space Hangout: October 16, 2019 – Jeffrey Kargel Talks Climate Change on Earth and Beyond

Hosts:
Fraser Cain (universetoday.com / @fcain)

Allen Versfeld (https://www.urban-astronomer.com/ / @uastronomer)

Dr. Morgan Rehnberg (MorganRehnberg.com / @MorganRehnberg & ChartYourWorld.org)

Moiya McTier (https://www.moiyamctier.com/ / @GoAstroMo)

Jeff Kargel is a Senior Scientist at the Planetary Science Institute in Tucson, Arizona. He is a geologist, a glaciologist, and a planetary scientist. Climate change is a major thread, and that is what he is here today to talk about.

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New Study Shows How Breaching “Carbon Threshold” Could Trigger Mass Extinction in Earth’s Oceans

This view of Earth’s horizon was taken by an Expedition 7 crewmember onboard the International Space Station, using a wide-angle lens while the Station was over the Pacific Ocean. A new study suggests that Earth's water didn't all come from comets. Credit: NASA

Between the scientific community, governments, humanitarian organizations, and even military planners, climate change is considered to be the single greatest threat facing humanity today. Between the increases in famine, disease, flooding, displacement, extreme weather, and chaos that result, it is clear that the way we are causing our planet to get warmer is having dire consequences.

But there a number of scenarios where the harm being done now could result in a runaway effect leading to mass extinctions. This possibility was illustrated in a recent study conducted by MIT professor Daniel Rothman with the support of NASA and the National Science Foundation (NSF). According to Rothman, we are in danger of breaching a “carbon threshold” that could lead to a runaway effect with Earth’s oceans.

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Airplane Contrails are Contributing to Global Warming Too

To the scientifically uninitiated, it might seem like a frivolous idea: That those slight, wispy clouds that trail behind jet aircraft at such high altitudes could contribute to climate change. But they do.

Scientists love to measure things, and when they measured these contrails, which is short for condensation trails, they found bad news. Though they look kind of beautiful and ephemeral on a summer day, they pack an oversize punch when it comes to their warming effect.

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NASA’s Long-Term Climate Predictions have Proven to be Very Accurate, Within 1/20th of a Degree Celsius

There are a handful of major science institutions around the world that keep track of the Earth’s temperature. They all clearly show that the world’s temperature has risen in the past few decades. One of those institutions is NASA.

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