Environmental challenges come in all shapes and sizes. Some seem far away and intangible while others touch us in our homes, on our farmland, in the air we breathe, and in the water we drink. Leading experts in climate science and environmental research will join WorldCanvass host Joan Kjaer on April 25 to discuss the most pressing concerns facing Iowans and international efforts to mitigate potentially disastrous effects of climate change and the resulting disruption to populations worldwide. You’re invited to attend the live discussion at MERGE, 136 South Dubuque Street, from 5:30-7 p.m. on April 25. The program is free and open to the public with a pre-show catered reception from 5-5:30 p.m.