those are some of the world s largest economies. deutsche bank research crunch to the data. nvidia has enjoyed a meteoric rise, adding a full $1 trillion in market cap injust about a month this spring. the firm has been capitalising on the fever around artificial intelligence. the chips made by the company are used to power the company are used to power the ai applications that are in use and in development now and companies are betting they ll be instrumental in the future. shares of nvidia are up around 170% this year. over 70 million people in the us are under heat alerts this week, with extreme temperatures as high as 41 celsius forecast in some areas. scientists say many extreme weather events are becoming more frequent and intense as a result of climate change and it s coming at a cost not just to human lives, but also to businesses. i have been speaking with professor illan noy, who suggests that climate change could be costing the world around $16 million per hour