 Hello, I'm Sai Chen from Open Source Strategies in Los Angeles, California. My background is on the business side. I run an e-commerce company and have also developed Open Source CRP and CRM software. So when I look at the climate change problem, I see a large-scale problem of data, trust and coordination, the biggest one of our lifetime. We're past the denials. We have the technology to solve climate change. But what we don't have is a way to get all the parts of our economy, the businesses, the investors, the banks and consumers, and regulators to work together effectively. This problem is even harder because we have to work across traditional boundaries of industries and countries and across vast supply chains around the world. Well blockchain is the perfect solution for large-scale collaboration because it can create trust in networks of data and transactions that scale without the need for central authorities. And Open Source software like Hyperletcher is a big part of that trust. They're also built from collaborative networks. They're a fundamental part of all blockchains. And for climate accounting, they assure us the quality of the results because they're open for analysis. In our climate accounting and neutrality working group, we're building the software for a global collaborative network for climate accounting. We've come up with a multi-channel architecture for integrating with lots of different data sources, calculating emissions for them, and then publishing those emissions for supply chain partners, regulators, investors and general public. We're starting with standards such as a greenhouse gas protocol and audited the data such as the e-grade utility emissions database in the United States. So we take data from utility bills, travel records, driving apps, shipping data feeds and purchasing records. We apply models to calculate their emissions and then we make those results available. Our goal is to make trusted greenhouse gas emissions accounting available for every business activity and every company of our economy. That way companies can know how to reduce their emissions. Investors could reward the companies that are taking positive climate action and regulators and investors can see what's really happening. Once we have this accounting, we could then integrate it up to the level of national and even supernational organizations for working on emissions treating. We could also make it available on apps designed for private individuals to reduce their own emissions and we could link everybody together to take climate action. What we're asking for is people to help us integrate our software into more activities. Climate change is happening because every little thing that is happening in our world is contributing to it just a tiny bit. We want to be able to get data on those activities, model their emissions and make people start to be aware of their impact and work together to reduce those emissions. So whether you're an experienced developer from the business side like myself or a private individual, we could all work together to stop climate change. Thank you.