What we do — and don't yet — know about the malaria cases in the U.S. Five local cases of malaria in the U.S. have been reported --mosquitoes carrying the malaria parasite bit and infected the individuals. How worried should we be? Is climate change a factor? Bec Roldan
Global heat waves show climate change and El Niño are a bad combo Scientists say worsening heat waves have a clear link to climate change. This year, a seasonal El Niño pattern will also be adding fuel to the fire. Lauren Sommer
Congress members dive into Northwest dams debate Four congress members listened to testimony about whether the four Lower Snake River dams should stay in place or be removed. Courtney Flatt
This fishing gear can help save whales. What will it take for fishermen to use it? On both the East and West coasts, whales are at risk of being entangled and injured by ropes used by fishermen. Fishing grounds are being closed, but new technology could help avoid that. Lauren Sommer
Can Seattle take the heat? Officials say area is better prepared this summer It takes about 10 days for a person to adjust to heat. It could take years to make the region thoroughly heatproof. John Ryan
Rare and resilient: Sunflower sea stars found on Oregon Coast Staff at the Oregon Coast Aquarium regularly search nearby Yaquina Bay for ocean life. On a recent voyage, they came across a big surprise – a group of 25 sunflower sea stars. Libby Denkmann
Summer is here: What to expect for PNW wildfire season and more It is the first official day of summer. The extended forecast shows the first few days of summer will be sunny and relatively warm. Katie Campbell
Germany's Green Party wants people to use heat pumps to save energy. Some are balking Some German homeowners are worried they'll have to foot the bill for their country's climate targets by replacing their gas boilers with cleaner — but more expensive — heat pumps. Rob Schmitz
The polar bears of Hudson Bay: cubs, climate, and calories, part 2 We learn about calorie counting for polar bears and what the future could look like for the Hudson Bay polar bear population. Chris Morgan
