Plant-based "meat" sales are set to explode, with Barclays estimating that the market for alternative meat could grow by 1,000% over the next 10 years, reaching $140 billion.

Barclays says that climate change, animal-welfare concerns, and greater interest in wellness are driving the meat-substitute revolution.

"Sustainability is increasingly more relevant as consumers, especially Millennials and Gen Z, have become more aware of the damage that food production has caused to the planet," Barclays said in a recent report.

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Plant-based "meat" is going mainstream, as grocery stores and fast-food chains jump on the alternative-meat bandwagon.

The market for alternative meat could reach roughly $140 billion over the next 10 years, according to a report released this week from Barclays. The market for plant-based "meat" is just $14 billion.

Read more: Evidence is mounting that fast-food chains from Chick-fil-A to McDonald's will be forced to add vegan menu items — or face the consequences

Barclays posits that alternative meat could take over 10% of the $1.4 trillion meat industry. This is a goal that has been central to the rise of the plant-based "meat" makers Impossible Foods and Beyond Meat as the companies target meat eaters over vegetarians.

Here are the three factors that Barclays says are driving the meat-substitute revolution.

Climate change and environmental worries

A protester attends a demonstration under the banner "Protect the climate — stop coal." REUTERS/Wolfgang Rattay

"Sustainability is increasingly more relevant as consumers, especially Millennials and Gen Z, have become more aware of the damage that food production has caused to the planet," Barclays wrote.

Global beef consumption is one of the leading environmental threats to the planet. Cows contribute more to global greenhouse-gas emissions than cars, with the average cow emitting up to 500 liters of methane every day.

Plant-based products aren't necessarily a perfect solution, with Barclays highlighting the link that palm-oil production has with deforestation. However, with climate change becoming "a more relevant topic," Barclays says that companies have the "opportunity to highlight how their products address this concern."

Animal-welfare concerns

Retuers/David Gray

With more than 95% of farm animals raised on factory farms, Barclays says that concerns regarding animal cruelty are making plant-based "meat" more popular. People are becoming more aware of farming-industry practices and pressuring companies to change, as well as exploring plant-based options.

"Rapid growth of animals in the interest of turning a profit more quickly saw livestock populations expand beyond available capacity, and higher densities changed the animals' living conditions and types of confinements — such as placing chickens in windowless sheds, cattle in feedlots, and pigs in gestation crates — to the detriment of animal welfare," the report said.

"In extreme cases, the birds may also face sleep deprivation as some factory farms keep lights on all day and night to encourage more eating rather than sleeping," it added.

However, most people aren't giving up meat entirely in response to the mistreatment of animals. Barclays sees the biggest opportunity for growth coming from people who still eat meat, not vegetarians and vegans.

Health and wellness concerns

Fast-food chains are adding plant-based burgers to the menu. Sarah Jacobs/Business Insider

People around the world are more health-conscious than ever before, with Barclays saying that wellness is now a lifestyle as opposed to a trend.

Plant-based "meat" makers have the chance to cash in on people trying to be healthier. As people attempt to improve their cardiovascular health, Barclays cites meat substitutes as a way for people to cut red meat and cholesterol from their diets.

However, many people remain confused on how to actually become healthier. And many meat alternatives have just as many calories as — and even more sodium than — traditional meat products.

"Besides people thinking that they are healthier than what they really are, they tend to address their issues with protein by focusing on taste and price, which could deter adoption of alternative meats if they don't satisfy consumers on these counts," the report said.