ARCHIVAL (COMEDY CENTRAL, 12-3-19):We all know that Americans love their hamburgers. But now, scientists are trying to cancel beef!

ARCHIVAL (COMMERCIAL):Yes. The Impossible whopper ..

NARRATION: Alternative meat is a hot commodity

ARCHIVAL (A & W COMMERCIAL):That patty is 100% plant-based protein.No way!!

NARRATION:but theres more to it than just its beefy taste.

ARCHIVAL (CBS, THIS MORNING, 8-9-16):DR. PAT BROWN: Meat takes an enormous toll on natural resources and the environment.

ETHAN BROWN: Under the current system, its not sustainable. It has to change.

NARRATION: While the new plant based meats may be high tech, the ideas behind them have been around for decades.

ARCHIVAL (1982):FRANCES MOORE LAPP: Choosing a plant diet can both help yourself and change the world all at the same time.

ETHAN BROWN: So much of what we do was in that book. You know, it was written there. But it takes that long for it to get into the mainstream dialogue, right?

ETHAN BROWN (TO LAB EMPLOYEES): Hello! Whats happening?

NARRATION: Ethan Brown started his alternative meat company, Beyond Meat, in 2009, with a radical idea you dont need an animal to make meat.

ETHAN BROWN (IN THE LAB): This is the 2.0 version which hasnt been released.

ETHAN BROWN (PRESIDENT AND CEO, BEYOND MEAT): If we can make it so it tastes and delights just like animal protein, very few consumers are going to say, Nah, I just dont want to do that.

NARRATION: Brown wants Beyond to play a role in the fight against climate change.

ETHAN BROWN (IN THE LAB): Thats excellent. Very good.

ETHAN BROWN: For a long time, I worked in the energy sector. Spending all of my career in this area, but not really focusing on that main problem. And that main problem is really livestock.

NARRATION: Cattle, especially in feedlots, emit dangerous amounts of greenhouse gasses, like methane and nitrous oxide.

ARCHIVAL (PBS, AMANPOUR, 8-8-19):MICHAEL MANN, PENN STATE UNIVERSITY: Our farming methods, agriculture, land use, deforestation, are contributing substantially to the climate crisis.

NARRATION: Because cows consume large amounts of grain, rising global meat consumption means increased exploitation of land and water. According to the United Nations, nearly 80% of the worlds agricultural land is used to graze or grow food for livestock.

ETHAN BROWN: Weve known about the resource intense nature of agriculture. Weve known about its implications in climate. Weve known about the health implications of consumption of high levels of animal protein. And weve of course known about the, you know, conditions that animals are raised in in an industrial agriculture. And every day we work away at solving for those problems by focusing on one thing: transitioning the protein at center of the plate from an animal-based protein to a plant-based protein. Thats it.

NARRATION: At Beyond Meats lab, they study every detailhoping to replicate the taste, texture, aroma and even the sizzle of meat.

ETHAN BROWN: The product were best known for is the Beyond Burger. And, we spent years actually working toward getting it to the point where a mainstream consumer would say, Yeah, thats a really meat-like experience for me. Its delivering the protein I need. Its satiating, etc.

NARRATION: Companies like Beyond want consumers to consider the social and environmental impact of the food they eat. But while their products are new, this idea that an individuals choice to eat less meat can benefit the worldis not. It was first introduced by a young author, Frances Moore Lapp, nearly 50 years ago.

ARCHIVAL (WCCO, MOORE REPORT, 3-2-80):DAVE MOORE: Francis Moore Lapp, author of the popular bestseller, Diet for a Small Planet.

NARRATION: In 1971, when she published Diet for a Small Planet

ARCHIVAL (NBC, 5-24-74)ANCHOR: A new hard look at the problem of hunger in America

NARRATION:the world was facing a hunger crisis.

ARCHIVAL (NBC, 5-24-74):JOHN CHANCELLOR: Even though we are growing more grain on this planet there are many more mouths to feed.

FRANCES MOORE LAPP (AUTHOR, DIET FOR A SMALL PLANET): The world was obsessed with feeding people. And I thought, ah, if I could just understand why people are hungry.

NARRATION: Conventional wisdom said we were reaching the Earths capacity to produce food. But Moore Lapp who was only 27 years old buried herself in data about global production.

FRANCES MOORE LAPP (GOING THROUGH BOXES IN HER HOME): The original manuscript for Diet for a Small Planet. Its dated January 26, 1971.

FRANCES MOORE LAPP: I just said okay. Im going to figure out, are we really at the Earths limits? Is that really the cause of hunger?

FRANCES MOORE LAPP (GOING THROUGH BOXES IN HER HOME): These are all of the calculations that I did, with little line rulers. And so I got my dads slide rule. And I just sat there hour after hour literally putting two and two together.

NARRATION: What she discovered astounded her. If all of the worlds grain was fed to people, there would be plenty to eat.

FRANCES MOORE LAPP: Theres more than enough for us all, if you take, as I did very simply, you take the world food supply and you divide it by the number of people on the planetmore, more than enough.

NARRATION: But we were feeding much of what we grew to cattle, which were remarkably inefficient at making meat. In one chart, Moore Lapp illustrated how 21 pounds of protein fed to a cow made just one pound of protein for people.

FRANCES MOORE LAPP: What I wanted to get across is that our current food system is inefficient, unjust, illogical, and destructive. You know? That we can do a lot better, and we need not have hunger.

NARRATION: Her solution, a meat free diet, was in the beef loving 1970s

ARCHIVAL (WINN DIXIE COMMERCIAL):Theyre the beef people.

NARRATION:so alien the publisher asked her to include recipes showing options for meat free meals.

FRANCES MOORE LAPP: I wanted to encourage people that, hey, we can be part of the solution, because I think we want to have meaning in our lives, and it feels good if we can align our daily choices with something larger.

ARCHIVAL (1982)INTERVIEWER: Has it helped people change their diets? Are people changing their diets?FRANCES MOORE LAPP: Oh, definitely. It has been a jumping off point for many people.

NARRATION: Despite little media attention, Diet for a Small Planet became a counterculture best seller, inspiring readers with the message that everyday choices and individual actions could make a difference. One of them was a young environmentalist, Seth Tibbott.

SETH TIBBOTT (FOUNDER, TOFURKY): I read that book and I became a vegetarian.

NARRATION: In 1980 he started a business in Forest Grove, Oregon, the Turtle Island Soy Dairy which made some of the first alternative meats from a soy protein called tempeh.

SETH TIBBOTT: This was the first ad that I created, for Turtle Island tempeh, and you see I have the soy tempeh, good old soy, and the five grain tempeh which was right out of the pages of Diet for A Small Planet, and then the soy tempeh with herbs, was my tempehroni.

NARRATION: Even though he was barely breaking even, in 1995 Tibbot introduced a new product for Thanksgiving. It was called tofurky.

SETH TIBBOTT: Nobody thought it was a good idea. They said Thats a stupid name, thats silly.

ARCHIVAL (MONTAGE OF V SHOWS WITH TOFURKY):Do you have any Tofurky?Tofurky?Tofu turkey.Tofurky anyone?Tofurky, tobagle with cream tocheese.Tofurky!

SETH TIBBOTT: We had no ad budget. But what we did have going for us was this quirky product with this quirky name. And we started finding that the media just couldnt get enough of it.

NARRATION: He made other products, too, like tofu sausages and deli slices. After decades of slow but steady growth, about two years ago, demand for Tofurkys products suddenly exploded.

SETH TIBBOTT: The conversation for us changed from, Where in the world are we going to sell all this product to, how in the world are we going to make enough to meet the demand of this new industry?

NARRATION: While the shift seems quick, its also something animal rights activists have been working toward for decades.

BRUCE FRIEDRICH (EXECUTIVE DIRECTOR, THE GOOD FOOD INSTITUTE): I read Diet for a Small Planet in 1987 and it blew my mind.

NARRATION: Like Seth Tibbott, Bruce Friedrich stopped eating meat after reading Diet for a Small Planet. But, he eventually grew to believe it was unethical to eat animals at all. He became an animal rights advocate, and tried everything from throwing fake blood on fur coats, to farm animal rescue to get people to stop eating meat.

BRUCE FRIEDRICH: I spent a whole bunch of time focused on individual dietary change. So, educating people about who farm animals are. And yet, year after year after year since then, per capita meat consumption has gone up.

NARRATION: So he switched from activism to capitalismand started a trade group that finds investors for alternative meat. To build market share, he says its essential to be mainstream working with venture capitalists, fast food restaurants and even meat companies.

BRUCE FRIEDRICH: The market sector is everybody who eats. So the market opportunity for investors, regardless of whether they care about the ethics, its hard to imagine anything more colossal. If all we do is continue to do the same sort of farm activism that weve been doing for decades, were not going to make progress.

NARRATION: That approach shared by both Beyond Meat and Impossible Foods seems to be working. In May of 2019, Beyond Meat had one of the best-performing public offerings by a major U.S. company in the past two decades.

ETHAN BROWN: Were growing like crazy, the opportunities keep coming to us, and step by step, were sort of wearing down the barriers to this idea that existed even just 10 years ago.

JAIME ATHOS (PRESIDENT AND CEO, TOFURKY): I think we have absolutely benefited from all the marketing efforts of our peer companies. Which is great. I mean, theyre rising the tide.

NARRATION: Seth Tibbots stepson, Jaime Athos, who is now Tofurkys CEO, says plant-based eating has made the shift from counterculture to mainstream. He points to sales trends from the past 2 years.

JAIME ATHOS: If you look at real animal meat sales, theyre like more or less flat. If you look at meat alternative sales they grew by about 37 or 38 percent. So, thats how a revolution happens. That kind of growth rate.

NARRATION: He also credits savvy marketing and a new generation of consumers, influenced by social media and awareness of climate change and animal welfare.

JAIME ATHOS: Many think its cool to be a plant-based eater. Its, kind of, on trend right now. I think Im pretty optimistic about people in general, but its nice to be surprised in that direction, that society could shift so quickly.

NARRATION: Francis Moore Lapps daughter, Anna Lapp, agrees. Shes a food writer and environmental activist who a decade ago wrote a book exploring foods impact on climate.

ANNA LAPP (AUTHOR, DIET FOR A HOT PLANET): I was at a food tech conference in San Francisco a few months back. And, it was so amazing to me how almost every single pitch began with what sounded like the beginning of a Frances Moore Lapp speech about the environment and sustainability.

NARRATION: But, she believes her mother has always wanted more than for people to just give up meat.

ANNA LAPP: She was never that simplistic. Its really not having a conversation about what we want our plate to look like. Its more, what do want our world to look like? To me, that Diet for a Small Planet message is ultimately this message about democracy. Who is making that choice that we should take this vast amount of land that could be feeding people directly, and turn it over to be growing feed for livestock in a way thats ultimately so inefficient?

NARRATION: Both Anna and her mother have concerns about the new meat alternatives. They worry that even if they do lead to less grain consumption, or are more humane for animals, many are heavily processed. They would also like to know more about how the plants that go into them are grown.

FRANCES MOORE LAPP: Any message that reinforces the idea that somehow you have to buy a packaged product in order to eat in the plant world is not helpful.

ANNA LAPP: One of the core principles of eating a climate friendly diet, is eating as much real food as possible, so not processed food. I think the question should be not just is something meat, or is it not meat, but were pesticides used, toxic pesticides? Were synthetic fertilizers that are incredibly energy intensive to produce? All of these questions go into essentially understanding what is the impact of the food were eating.

NARRATION: As for Frances Moore Lapp herselfshe is having a renaissance. Shes in demand as a speaker, and along with Anna, is preparing a 50th anniversary edition of Diet for a Small Planet.

FRANCES MOORE LAPP: Theres been enormous change in our culture around foods since I wrote my book. Just enormous change. People often ask me, wasnt it hard to give up meat? And I say, no, it was so exciting. This was about foundational change. And a system that was really destructive and not serving us. It was very much about finding our voice and having power and to make in some small way some difference in the world