Earth
Sign up for our newsletter
We summarize the week's scientific breakthroughs every Thursday.
- 			 Earth EarthErosion has erased most of Earth’s impact craters. Here are the survivorsEarth’s largest known impact crater measures 160 kilometers in diameter. The newest, yet to be confirmed, stretches a still-whopping 31 kilometers. 
- 			 Climate ClimateHalf a degree stole the climate spotlight in 2018Climate attribution studies and new data on global warming targets put climate change in the spotlight this year. 
- 			 Earth EarthGreenland crater renewed the debate over an ancient climate mysteryScientists disagree on what a possible crater found under Greenland’s ice means for the Younger Dryas impact hypothesis. 
- 			 Climate ClimateNew research may upend what we know about how tornadoes formNew data on the birth of tornadoes suggest that the twisters don’t form from the top down. 
- 			 Plants PlantsHybrid rice engineered with CRISPR can clone its seedsNew research has created self-cloning hybrid rice, raising hopes of higher food production. By Susan Milius
- 			 Animals AnimalsNearly 200 Great Barrier Reef coral species also live in the deep seaThere are more coral species lurking in the deep ocean that previously thought. That could be good news for their shallow water counterparts. 
- 			 Earth EarthHere’s what was surprising about Kilauea’s 3-month-long eruptionResearchers revealed new insight into the Hawaiian volcano’s most recent eruption. 
- 			 Tech TechA new way to turn saltwater fresh can kill germs and avoid gunk buildupA new device that harnesses sunlight to produce pure vapor from seawater could last longer and produce cleaner water than other technology. 
- 			 Climate ClimateThe list of extreme weather caused by human-driven climate change growsThe tally of extreme weather events linked to climate change continues to grow, with new studies outlining links to more than a dozen events in 2017. 
- 			 Climate ClimateGlobal carbon dioxide emissions will hit a record high in 2018Carbon dioxide emissions from China, the United States and India all rose this year, a new report finds. 
- 			 Oceans OceansVolcanic eruptions that depleted ocean oxygen may have set off the Great DyingMassive eruptions from volcanoes spewing greenhouse gases 252 million years ago may have triggered Earth’s biggest mass extinction. 
- 			 Climate ClimateHalf the world’s annual rain falls in just 12 daysClimate change could shorten the time it takes for the world to receive half its annual precipitation from 12 days to 11 by 2100. By Kyle Plantz