The Climate Change Solution Scientists Have Been Overlooking

You might have learned about it in sex ed.

Poring Studio/Shutterstock

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters.

Overpopulation is a major contributor to climate change, but according to new research, a solution is lying in plain sight: increased access to effective contraceptives.

“Global climate change represents a grave threat to the future of human welfare and our natural environment,” write doctors John Bongaarts and Régine Sitruk-Ware of the Population Council in New York in an article published Tuesday in BMJ Sexual & Reproductive Health. “The contentious ongoing policy debate about potential interventions focuses on switching to renewable energy sources and increasing energy use efficiency. But given the urgency of the problem and the lack of political will, other approaches to limit greenhouse gas emissions should be given higher priority. Improving access to effective contraception is one such policy that has thus far been largely ignored by the international climate community.

The authors claim that improved access to contraception could slow population growth and thereby reduce long-term greenhouse gas emissions globally by 40 percent or more. Bongaarts and Sitruk-Ware write that many married women—more than half in some countries—who do not wish to become pregnant still fail to use contraception due to barriers to access, high costs, and social stigma. Consequently, there are about 99 million unintended pregnancies worldwide each year. By 2100, Earth’s population is expected to reach 10.9 billion people. (The current population is about 7.7 billion.)

As Paul Ehrlich, author of The Population Bomb, told Mother Jones in 2010, “overpopulation, combined with overconsumption, is the elephant in the room” in climate discussions. “We don’t talk about overpopulation because of real fears from the past—of racism, eugenics, colonialism, forced sterilization, forced family planning, plus the fears from some of contraception, abortion, and sex. We don’t really talk about overconsumption because of ignorance about the economics of overpopulation and the true ecological limits of Earth.”

Bongaarts and Sitruk-Ware recommend that governments worldwide increase access to contraceptives by investing in family planning programs. They also encourage the research and development of new forms of contraception, and they suggest combatting social opposition to birth control through media campaigns.

“Wider distribution of contraceptives already on the market through greater investment in voluntary but underfunded family planning programmes is sufficient to raise contraceptive use substantially,” they write. “This in turn would have a profound positive impact on human welfare, the climate and the environment.”

FOLLOW THE MONEY

Corporations and billionaires don’t fund journalism like ours that exists to shake things up. Instead, support from readers allows Mother Jones to call it like it is without fear, favor, or false equivalence.

And right now, a longtime friend of Mother Jones has pledged an incredibly generous gift to inspire—and double—giving from online readers. That's huge! Because you can see that our fall fundraising drive is well behind the $325,000 we need to raise. So if you agree that in-depth, fiercely independent journalism matters right now, please support our work and help us raise the money it takes to keep Mother Jones charging hard. Your gift, and all online donations up to $94,000 total, will be matched and go twice as far—but only until the November 9 deadline.

$400,000 to go: Please help us pick up the pace!

payment methods

FOLLOW THE MONEY

Corporations and billionaires don’t fund journalism like ours that exists to shake things up. Instead, support from readers allows Mother Jones to call it like it is without fear, favor, or false equivalence.

And right now, a longtime friend of Mother Jones has pledged an incredibly generous gift to inspire—and double—giving from online readers. That's huge! Because you can see that our fall fundraising drive is well behind the $325,000 we need to raise. So if you agree that in-depth, fiercely independent journalism matters right now, please support our work and help us raise the money it takes to keep Mother Jones charging hard. Your gift, and all online donations up $94,000 total, will be matched and go twice as far—but only until the November 9 deadline.

$400,000 to go: Please help us pick up the pace!

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate