Transcript for 'Start Here' podcast: Strengthening storms
And as millions of Americans brace for that onslaught. New questions are being raised about whether hurricanes are actually becoming more powerful OK so take a look at this image and you can see Florence. As well as two other storms Isaak there in the middle and who leaned. Now the flash is you can see our lightning strikes. And joining us this morning as ABC's Scott Colbert to talk about whether or not we're seeing more of these systems good morning. Hi guys today on the start here podcasts we're talking hurricanes and why they've been so strong and destructive in the past few years. Sandy her mom Maria and Harvey of the storm that swamped Houston last year. Some forecasters say Florence the one now heading toward the East Coast could be similar to Harvey and park itself over the Carolinas. We put the question to our chief meteorologist ginger zee and one thing she says you have to consider is construction and all of the flat areas where new developments keep getting bills. It changed the surface of our planet made it less per vehicle and when you have a big storm it shows up when you give it asphalt verses a smile. You're going to meet a river out of a road. As for climate change yeah that to the oceans are getting warmer we will get into all of the details on today's episode of start here you can download it wherever you get your podcasts Candace and Stephanie. Thanks Scott.
This transcript has been automatically generated and may not be 100% accurate.