Tropical Storm Dorian may strengthen into a hurricane at Puerto Rico

Tropical Storm Dorian
Photo: NOAA/National Hurricane Center/Twitter

Tropical storm warnings are in effect for several Carribbean islands, as Tropical Storm Dorian strengthens — and it could form into a Category 1 hurricane over Puerto Rico midweek, National Hurricane Center forecasts show.

Why it matters: Puerto Rico is still struggling to recover from Hurricane Maria. It declared bankruptcy in 2017 amid "the biggest government financial collapse in United States history."

Steve Bullock tells CNN town hall: We can be carbon neutral by 2040

Democratic presidential hopeful Montana Gov. Steve Bullock speaks during the AARP and The Des Moines Register Iowa Presidential Candidate Forum on July 20
Democratic presidential candidate and Montana Gov. Steve Bullock at a July presidential candidate forum in Council Bluffs, Iowa. Photo: Justin Sullivan/Getty Images

Democratic presidential candidate and Montana Gov. Steve Bullock told a CNN town hall in New York Sunday it's possible to reach net zero carbon emissions by 2040 "or even earlier."

Details: That's much faster than United Nations goals for world leaders to commit to net zero emissions by 2050. Bullock pledged at the town hall to start tackling the climate crisis by rejoining the Paris Climate Agreement, which President Trump announced in 2017 he would withdraw the U.S from.