- New legislative panels will investigate “facts and circumstances” of deadly Central Texas floods
- Springfield Middle School fully reopens next week, a year after devastating EF3 tornado
- Dozens rescued as remnants of typhoon hits Alaska while nor’easter brings flooding to East Coast
- New Jersey declares emergency as nor’easter approaches, while Alaska flooding carries away homes
- Road closures reported due to flooding in Myrtle Beach
Why are Canadian wildfires affecting the U.S.?

There are anomalies that help explain why smoke from 400 Canadian wildfires is causing such havoc in the United States. Correspondent David Pogue talks with climate and health scientist Vijay Limaye, of the Natural Resources Defense Council, about why this may be a sign of things to come.