, welcome back! Click here to sign in with Facebook.

Win a Trip to The Avengers 2 Set and Hang out with
Mark Ruffalo

& support

Water Defense

This Campaign
has Ended

$182,096 raised of $75,000 goal




Click to see official rules

A note from Mark Ruffalo

Hi everyone, it's Mark Ruffalo here! 

How would you like hang out with me on the set of The Avengers 2: Age of Ultron? 

I'll get to that in a second! I'm here on Prizeo on behalf of Water Defense and the fight against water contamination. It's a cause that means a great deal to me, and I hope you'll take a second to read about it over on the right side of this page!

If you support Water Defense with a small donation, you will be entered to win a trip to London to join me on The Avengers 2 set! Flights from anywhere in the world and hotel accommodations will be included.

It will be a fun day at work for both of us! 

I am so thankful for your support. Thank you so much, and I look forward to meeting one of you very soon!


About Water Defense

We believe it is a fundamental human right for people to have access to clean water by knowing what is really in their water.  Water Defense utilizes state of the art Environmental Indicators to measure contamination and the accumulation of contaminants over time, which include but are not limited to oil and related chemicals and organometallic compounds. Our Water testing methods are the first line of Defense in protecting clean water sources. Corporations do not pollute water, people do, and by arming people with the best available technology to fingerprint what is in the water, we will be able to diagnose the true extent of the problem so we can bring people together to fix it by increasing education and awareness.

Water Defense believes that Water is our most precious resource and that it needs to be protected with apolitical and transparent knowledge. We go to disaster sites and known places where there is water contamination to test the water; raise awareness about potential impacts to water quality; and work with scientists to validate and disseminate the data. 

Our goal is to foster cumulative water testing and photo documentation of contamination in communities everywhere. We see water contamination as a global issue that will only be resolved when individual regions understand and take responsibility for their impact on water.  

The cause

You can earn extra entries for sharing!

1194 messages from supporters like you


Make a donation below to get entries and rewards. Each entry is a chance to win the grand prize. At the end of the campaign, a winning entry will be chosen at random.

2 entries to win


5 entries to win


10 entries to win


20 entries to win


20 entries to win


30 entries to win


30 entries to win


40 entries to win


50 entries to win


50 entries to win


60 entries to win


100 entries to win


500 entries to win


You can earn extra entries for sharing!