When English vineyards started producing sparkling wine that aficionados lauded as a rival to Champagne, Jack McIntyre took note.

"England was suddenly growing grapes that typically grew in warmer climes,” said McIntyre, a three-decade investment veteran at Philadelphia-based Brandywine Global Investment Management. "No doubt temperatures are rising — how you properly price climate change in rates markets though, I have no answer for yet.”

He’s not alone.