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is a Mashable series that answers provoking and salient questions about Earth’s warming climate.   Big snakes, alligators, giant tortoises, and flying lemurs thrived in a balmy Arctic some 50 million years ago. It was a time when the potent greenhouse gas carbon dioxide had spiked in Earth's atmosphere, making the high polar regions downright tropical.  Scientists who investigate past climates, called paleoclimatologists, have collected bounties of evidence that CO2 has long been a dominant lever of Earth's temperature. The evidence exists in chemicals stored in fossils, which indi...

Climate scientists at the Nanyang Technological University, Singapore (NTU, Singapore) have extended the known record of Singapore's sea-level to almost 10,000 years ago, providing a more robust dataset to aid future predictions of sea-level rise.

April 22, 2021 By Anuradha Varanasi In honor of Earth Day on April 22, the Earth Institute has a variety of great stories and events lined up for you throughout the entire month of April. Learn more. As the impacts of climate change are speeding up, the frequency of extreme weather events and natural disasters is soaring. Every summer, there are destructive wildfires in California and the Himalayas, or heatwaves in Europe, or record floods in East Africa and South Asia during monsoons. This year’s Earth Day theme, “Restore Our Earth,” urges us to realize that after enduring multip...

April 19, 2021 Dear fellow members of the Columbia community: In July of 2020, I wrote announcing the creation of the Columbia Climate School—the first of its kind and the first new school at Columbia in more than 25 years. Since then, we have been hard at work on all that is required to establish a school that will keep Columbia at the very forefront of the fields of climate and sustainability. Essential to this, of course, is leadership.  I am now delighted to announce that the Columbia Climate School will be co-led by four of Columbia’s most eminent climate experts: Alex Halliday, ...

Events to attend in the final stretch of the semester Events to attend in the final stretch of the semester Ashley Jiao / Senior Staff Illustrator NYC/Campus Zoom Events With the semester coming to a close, there are a number of University-sponsored events that you might want to attend. . These include a discussion of the injustices related to the pandemic, a lecture on the foundations of ethical decision-making, or a conversation about queer liberalism and marginal mobility. With these options, you are likely to find something in line with your personal interests that would enrich your u...