I've decided this year that I'm going to give up my birthday for charity: water.

21st birthdays are all about drinking, so I'd ask that instead of writing me a check or buying me a gift, you donate what money you'd spend on my behalf to my birthday campaign for clean drinking water.

Almost a billion people in the world are living without clean water -- but how much are they really living? Millions contract deadly diseases from contaminated water. 30,000 people will die this week alone. The lucky ones won't, but still have to walk hours each day to get dirty water for their families.

100% of all donations go directly toward water projects. And about 18 months after this campaign ends, charity: water will show us where and how every dollar we raised ended up helping in the field. We'll see GPS coordinates, photos and more details about the communities we've impacted.

Please join me. I kicked off the campaign with a $21 donation myself, and my goal is $1021. Let's see if we can get there!