Official websites use .gov A .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS A lock (A locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
![National Oceanic and Atmospheric Administration](https://cdn-ak-scissors.b.st-hatena.com/image/square/041f5750460319da5a5ad506c05c23191475ecaa/height=288;version=1;width=512/https%3A%2F%2Fwww.noaa.gov%2Fsites%2Fdefault%2Ffiles%2Fstyles%2Flandscape_width_1275%2Fpublic%2F2021-02%2FPHOTO-iStock-61824204-Global%2520Warming_Large%2520Sun-80116-1440x950-homepage_1.jpg)