A study by MIT researchers uncovers evidence that the Earth’s global ice ages were triggered by a rapid drop in sunlight, reports Mashable. The researchers found that an “event like volcanic eruptions or biologically induced cloud formation will be able to block out the sun and limit the solar radiation reaching the surface at a critical rate that can potentially trigger ‘Snowball Earth’ events.”
Forbes contributor Bruce Dominey writes that a study by MIT researchers finds global ice ages may have been triggered by a rapid decrease in the amount of solar radiation reaching Earth. “Past Snowball glaciations are more likely to have been triggered by changes in effective solar radiation than by changes in the carbon cycle,” writes Dominey.
A study by Prof. Dan Rothman finds that increasing greenhouse gas emission rates could trigger a mass extinction in the ocean, reports Priya Shukla for Forbes. Shukla writes that Rothman found if a certain carbon threshold “is breached, it would take tens of thousands of years for the oceans to return to their original unperturbable state.”
A new study by MIT researchers provides evidence that life on Earth may have begun in shallow bodies of water, reports Martin Finucane for The Boston Globe. The researchers found that ponds “could have held high concentrations of a key ingredient, nitrogen, while that would have been less likely in the ocean,” Finucane explains.
A new study by MIT researchers provides evidence that the first life on Earth likely came from shallow ponds, not oceans, reports the Xinhua news agency. The researchers found that primitive ponds that were about “10 centimeters deep had higher concentrations of nitrogen, a key ingredient for life on Earth.”
Fast Company reporter Adele Peters highlights a new study co-authored by MIT researchers that examines the impacts of using solar geoengineering to cut global temperature increases caused by climate change in half. The researchers found that “reducing warming would also offset the increasing intensity of hurricanes and would help moderate extreme rain and a lack of water for farming,” Peters explains.
LiveScience reporter Stephanie Pappas writes that a new study by MIT researchers finds that massive tectonic collisions in the tropics may have led to the last three ice ages on Earth. “This could provide a simple tectonic process that explains how Earth goes in and out of glacial periods,” explains Prof. Oliver Jagoutz.
Axios reporter Andrew Freedman writes about a study by MIT researchers examining solar geoengineering. “Contrary to earlier studies that focused on solar geoengineering schemes that would aim to cancel out all human-caused global warming,” Freedman writes, “the new study found that halving the amount of warming would not have widespread, significant negative impacts on temperature, water availability, the intensity of hurricanes or extreme precipitation."
Prof. Kerry Emanuel speaks with Radio Boston about a new study that finds solar geoengineering could mitigate some of the adverse effects of climate change. Emanuel notes that solar geoengineering “is sort of like an emergency alarm that you would sound or something you would keep in your back pocket to play if things get desperate.”
A study by MIT researchers finds that climate change is causing pollution to linger longer over cities and making summer thunderstorms more powerful, reports Tanya Rivero for CBS News. “We found a way to connect changes in temperature in humidity from climate change to changing summer weather patterns that we are experiencing at our latitude,” explains graduate student Charles Gertler.
Bloomberg News reporter Eric Roston writes that a new study by MIT researchers finds that climate change is making summer thunderstorms more powerful and urban pollution more potent. “Summertime weather isn’t ventilating American cities at the rate that it did in the past,” explains graduate student Charles Gertler.
MIT researchers have found that climate change could cause more thunderstorms and stagnant air in the summer, reports Martin Finucane for The Boston Globe. “With temperatures rising globally, and particularly in the Arctic, the energy in the atmosphere is being redistributed,” writes Finucane. “The result is that more energy will be available to fuel thunderstorms.”
Fast Company reporter Jesus Diaz writes that MIT researchers have developed a computer model that shows that rising water temperatures will cause the color of the world’s oceans to change.
MIT researchers have found that climate change will cause half of the world’s oceans to change color by 2100, reports Becky Ferreira for Motherboard. “Monitoring ocean color could yield valuable insights into the effects of climate change on phytoplankton,” Ferreira explains.
The Washington Post spotlights an MIT study examining how climate change will alter the color of the oceans. “Changes are happening because of climate change,” says principal research scientist Stephanie Dutkiewicz. “The change in the color of the ocean will be one of early warning signals that we really have changed our planet.”