Climate
- 			 Earth EarthHere’s how climate change may make Australia’s wildfires more commonAn El Niño–like ocean-atmosphere weather pattern called the Indian Ocean dipole helped fuel extremely dry conditions in Australia. 
- 			 Climate ClimateClimate models agree things will get bad. Capturing just how bad is trickyClimate models are better than ever at simulating complex interactions between ocean, air, ice and land. But scientists still aren’t really sure what the worst-case scenario might be for Earth’s future climate. 
- 			 Earth EarthClimate change is bringing earlier springs, which may trigger drier summersAn earlier than normal start to spring foliage is associated with drier soils come summer across much, but not all, of the Northern Hemisphere. 
- 			 Earth EarthClimate change may be why birds are migrating earlier across the United StatesBirds are migrating earlier in recent decades in the United States, which could disrupt feeding or nesting cycles. By Sofie Bates
- 			 Animals AnimalsA year of big numbers startled the world into talking about natureOne million species are at risk. Three billion birds have been lost. Plus surges in Amazon burning. By Susan Milius
- 			 Climate ClimateRecord-breaking heat amplified waves of student climate protests in 2019While the world experienced record-breaking heat, Greta Thunberg and other activists pushed decision makers to take climate change seriously. 
- 			 Earth EarthFlooding Earth’s atmosphere with oxygen may not have needed a triggering eventBuilding an oxygen-rich world doesn’t require volcanism, supercontinent breakups or the rise of land plants — just nutrient cycling, a study finds. 
- 			 Climate ClimateHow the Arctic’s poor health affects everyday lifeA new NOAA report features testimony from indigenous communities in Alaska who are weathering the impacts of Arctic warming. 
- 			 Earth EarthFingerprints of climate change are increasingly appearing in extreme weatherA new report finds evidence that some of 2018’s extreme weather events were linked to human-caused climate change. 
- 			 Climate ClimateSee how an Alaskan glacier has shrunk over timeScientists have created a time-lapse series of images of the retreat of an Alaskan glacier using NASA and U.S. Geological Survey Landsat data. 
- 			 Earth EarthClimate-warming CO₂ emissions will hit a record high in 2019Despite countries adopting renewable power sources and coal use falling slightly, oil and gas use are pushing global carbon dioxide emissions to record heights. 
- 			 Climate ClimateCountries urgently need to ramp up emissions cuts to meet climate targetsA new U.N. report finds that pledged emissions cuts aren’t nearly enough to limit warming to “well below” 2 degrees Celsius by 2100.