ABC15's Nick Ciletti spoke with Arizona Senator Mark Kelly to discuss ongoing conflict, his candid words for Secretary of Defense Pete Hegseth, and his concerns if the Ukraine war wages on.

Leading climate solutions investors say prevailing market forces mean that Trump's focus on fossil fuels can slow, but not ...

Sen. Mark Kelly calls extreme heat a crisis that demands a whole community approach involving leaders from all corners of ...

In May, the White House released a budget proposal that would slash NASA funding. But a Senate appropriations plan would protect the agency's budget.

Mark Carney was a leader on global climate change action. As prime minister he seems in full retreat. Photo via Canadian Press.

Mark Carney has the chance to differentiate Canada from the U.S. and demonstrate his leadership on climate. Instead, at the G7 summit and beyond, he seems to have abandoned his climate principles.

If climate change makes it even easier for them to hide, then the threat they represent, and thus their deterrence value, may be seen as more credible. But some experts caution against overstating ...

Extreme weather due to climate change may cost Italy more than 5% of GDP in 2050, the country's budget watchdog said on Wednesday, adding that global action to reduce carbon emissions could ...