 Our ocean. It's the ultimate life support system for nearly a million known species. And us. It feeds over 2.6 billion, provides jobs for over 3 billion, and is responsible for 70% of the oxygen we breathe. But rising carbon dioxide levels are already causing the ocean to become more acidic, threatening its coral reefs and ecosystems, putting all of us at risk. Within the next few decades, marine organisms in every part of the ocean will be in peril, adversely affecting communities and economies all over the world. But there is hope. Introducing the XPRIZE Ocean Initiative, five prize competitions that are part of our overarching commitment to ocean health and exploration. Our first ocean competition, the $1.4 million Wendy Schmidt Oil Cleanup X Challenge, challenged teams from around the world to double the rate of oil cleanup technology in the wake of the Deepwater Horizon Crisis. In the end, the winning team quadrupled the rate, ensuring that future oil spills will be met with more effective and efficient results. And now we've launched the $2 million Wendy Schmidt Ocean Health XPRIZE. This competition is challenging teams of engineers, scientists and innovators from all over the world to create pH sensor technology that will affordably, accurately and efficiently measure ocean chemistry from its shallowest waters to its deepest depths. Ocean acidification is the biggest silent threat to the planet right now. We're adding CO2 at a rate that's 10 to 100 times faster than it's ever been added in the past. This is one of the few cases where we recognize how humanity has changed without question the chemistry of the ocean on a global scale. That's a crisis. The ocean is the cornerstone, the blue heart of our life support system. It should be headlines in more than just scientific journals. People need to know that things that are basic to our everyday lives are survival or at risk. Anyone that's got an aquarium knows that if you change the chemistry of the aquarium water, you start to affect life in that aquarium. And that's what we're doing on a global scale right now by our actors. This is changing the chemistry of our planet. It's pretty fundamental. The oxygen that we breathe comes from life in the ocean. Change the acidity, you're changing everything. These new technologies will ultimately provide the information we need to solve the crisis of ocean acidification for now and for future generations. So get involved, become an ocean ambassador, cheer on your favorite team and join our mission to launch future X-Prize ocean competitions. After all, it's your ocean too. The X-Prize Ocean Initiative, turning the tide on ocean health.