Had It up to Here with Climate Change? Eat Beans Instead of Beef
A new study shows how one dietary change in the U.S. could make a 46%-plus dent in greenhouse gas reductions.
One of the most effective things Americans can do to curb greenhouse gas emissions is surprisingly simple: eat beans instead of beef.
A recent study showed that if every American made the switch, the U.S. could achieve between 46 and 74 percent of the reductions necessary to meet its emissions goals for 2020 that were pledged by former President Barack Obama. That considered, imagine the difference a reducetarian approach could have too, for those who can't go cold turkey—er, beefy—on their steaks.
“I think there’s genuinely a lack of awareness about how much impact this sort of change can have,” said study author Helen Harwatt to The Atlantic.
Climate change policy in the U.S. focuses mainly on reducing carbon dioxide (CO2) emissions by curbing or modifying energy production and usage. However, climate change is also driven by non-CO2 emissions — namely, methane (CH4) and nitrous oxide (N2O). More than half of these non-CO2 emissions come from livestock farming.
Globally, livestock farming accounts for 15 percent of human-caused greenhouse gas emissions. The effects, however, are disproportionately destructive: methane and nitrous oxide warm the planet significantly more than carbon dioxide.
The massive scale of livestock farming puts the problem into focus. According to the United Nations, one third of Earth’s arable land is used to grow feed for livestock, and in total, about a third of all land on the planet is used to produce animal products.
Feeding cows is also an especially inefficient process. During their lifetimes, cows will consume far more calories from food like beans than they’ll ever yield in meat. Growing that food takes up a lot of land. The study notes that the U.S. could free up 42 percent of its cropland if Americans gave up beef — that's more than the size of California.
Making the dietary switch would be an effective way for individuals to fight climate change without having to rely on lawmakers or private interests.
“The real beauty of this kind of thing is that climate impact doesn’t have to be policy-driven,” said Harwatt. “It can just be a positive, empowering thing for consumers to see that they can make a significant impact by doing something as simple as eating beans instead of beef.”
Obama pledged that U.S. greenhouse gas emissions would be roughly 17 percent lower in 2020 than they were in 2005. Making this dietary shift could be one of the easiest ways to reach that goal.
“Given the scale of greenhouse gas reductions needed to avoid the worst impacts of climate change, are we prepared to eat beef analogs that look and taste like beef, but have a much lower climate impact?” Harwatt asks. “It looks like we'll need to do this. The scale of the reductions in greenhouse gas emissions needed doesn't allow us the luxury of 'business as usual' eating patterns.”
Malcolm Gladwell teaches "Get over yourself and get to work" for Big Think Edge.
- Learn to recognize failure and know the big difference between panicking and choking.
- At Big Think Edge, Malcolm Gladwell teaches how to check your inner critic and get clear on what failure is.
- Subscribe to Big Think Edge before we launch on March 30 to get 20% off monthly and annual memberships.
We take fewer mental pictures per second.
- Recent memories run in our brains like sped-up old movies.
- In childhood, we capture images in our memory much more quickly.
- The complexities of grownup neural pathways are no match for the direct routes of young brains.
A consortium of scientists and engineers have proposed that the U.S. and Mexico build a series of guarded solar, wind, natural gas and desalination facilities along the entirety of the border.
- The proposal was recently presented to several U.S. members of Congress.
- The plan still calls for border security, considering all of the facilities along the border would be guarded and connected by physical barriers.
- It's undoubtedly an expensive and complicated proposal, but the team argues that border regions are ideal spots for wind and solar energy, and that they could use the jobs and fresh water the energy park would create.
It's one of the most consistent patterns in the unviverse. What causes it?
- Spinning discs are everywhere – just look at our solar system, the rings of Saturn, and all the spiral galaxies in the universe.
- Spinning discs are the result of two things: The force of gravity and a phenomenon in physics called the conservation of angular momentum.
- Gravity brings matter together; the closer the matter gets, the more it accelerates – much like an ice skater who spins faster and faster the closer their arms get to their body. Then, this spinning cloud collapses due to up and down and diagonal collisions that cancel each other out until the only motion they have in common is the spin – and voila: A flat disc.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.