In today’s CEO Daily: Diane Brady on climate change and corporate leadership.The big story: It’s Tariff Day! The markets: Down across the board (did we mention it’s Tariff Day?).Analyst notes from ING and UBS on tariffs, and Goldman Sachs on expectations for today’s jobs number.Plus: All the news and watercooler chat from Fortune. Good morning. I had hoped to be writing to you from Toronto but my flight was cancelled due to thunderstorms. Storms are nothing new, of course, nor are steamy summers in New York. But 2024 was the warmest year on record and the pattern is continuing this year, impacting every part of the planet. (Japan recorded its highest-ever temperature on July 30 of 41.2 degrees Celsius, or 106.2 degrees Fahrenheit.)The U.S. Department of Energy recently came out with a stunning report that downplays climate change in an effort to justify rolling back regulations to address it. I would instead suggest readers check out the tools, lessons and insights in Supporting Extreme Heath Risk Governance, released last week on the first anniversary of the UN Secretary-General’s Call to Action on Extreme Heath.It’s easy to feel powerless against the vagaries of Mother Nature, whether trudging home from LaGuardia after a cancelled flight or trying to flee an impending tsunami. But there’s much that people can do to adapt to the realities of a warming planet and mitigate its effects, especially leaders who are in a position to create new products, policies and practices.Readers of this newsletter know that I’m a fan of economist Spencer Glendon, who has long tracked the impact of climate change. He often speaks to Fortune 500 leaders and their teams about the path forward for business. We’re hosting a climate dinner for C-Suite leaders on September 23 in partnership with Deloitte, which also sponsors this newsletter. We are also planning to feature more dialogues and reporting on innovation in energy and related issues. My colleague Jordan Blum is helping to lead the way. What’s possible through technology is exciting.As a college student in Nairobi, I worked part-time as a writer at the UN Environment Programme. When writing my first speech for executive director Mostafa Tolba, his advice was “make it funny.” I spent the night trying to come up with jokes about desertification, only to have him clarify that the goal was to joke about him, not the degradation of fertile land. Such challenges can feel so big and intractable in the abstract. When we connect as human beings, he said, we can get things done.This story was originally featured on Fortune.com