John Gumm

CINCINNATI (WKRC) - One of the questions that comes up every year after the Western & Southern/WEBN Fireworks is: how do they do that? This video file cannot be played.(Error Code: 102630) How do fireworks get their colors? John Gumm explains (WKRC) When each element burns, it creates a different color, which is how fireworks can have so many different colors. A common color is red, which is made with the element strontium. Sodium is used to create yellow. White is created using primarily magnesium.

CINCINNATI (WKRC) - If you live in a historically-redlined neighborhood in Greater Cincinnati -- like Avondale, Lower Price Hill, or Westwood -- once considered too risky for investments by the federal government, you are exposed to higher levels of air pollution. That's according to a recently-released study. But even if you don’t live in one of these neighborhoods, the air pollution produced there is still a problem for you.

CINCINNATI (WKRC) - The Urban Heat Island Effect is what causes the city of Cincinnati to be warmer than surrounding suburban or rural areas. But some neighborhoods are significantly warmer than others. For the first time ever, we have measurements - more than 80,000 of them - detailing where the warmest neighborhoods are within Cincinnati. Climate is a large part of Michael Forrester's focus as the Director of the Office of Environment and Sustainability for the City of Cincinnati.