. >> the founder of hampton creek, josh tetrick is obvious setsed with the egg's versatility? makes sure your cookie doesn't crumble. it will gels. it is pervasive. it's all over the place. >> that's one of the reasons why he thinks he can change the egg. >> when you peel back the on yun of the chicken egg, you see some strange things. you see it's a part of a system that's responsible for 18% of the world's greenhouse gas emissions, part of a system that sees avian flu pop-ups around the world. it uses a lot of water. it felt like a good sort of lever that we could pull to bring the cost of food down to bring the sustainability of food healthier. >> when it comes to resources, egg production is an energy hog. it takes 39 calories of fossil energy to produce one calorie of egg protein, very close to beef, but the ratio for plant protein is about 2 to 1. for tetric, that meant the key to building a better egg was to it. >> our chicken egg is something that has 23 discrete functions. a part of what we do is to search for plants that are better than the chicken egg in doing all o