When more than two dozen world leaders deliver remarks at the United Nations' annual climate conference on Wednesday, many are likely to detail their nations' firsthand experience with the catastrophic weather that has come with climate change.
That could include Pakistan Prime Minister Shehbaz Sharif, whose nation has seen deadly flooding this year from monsoon rains that scientists say have become heavier with climate change. Just two years ago, more than 1,700 people died in widespread flooding. Pakistan has also suffered from dangerous heat, with thousands of people hospitalized with heatstroke this spring as temperatures soared to 47 degrees Celsius (117 Fahrenheit).
