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The number of undernourished people around the globe increased to nearly 821 million in 2017, the third straight year of growth and the highest figure since 2009, according to a new report from the UN's Food and Agriculture Organization.

Expand chart
Adapted from Food and Agriculture Organization of the United Nations, "The State of Food Security and Nutrition in the World"; Chart: Axios Visuals

Why it matters: Along with conflict and instability, this rise in global hunger is driven increasingly by climate change and related extreme weather events, putting some of the world's most vulnerable citizens at even greater risk.

  • Food insecurity was found to be significantly worse in countries where people are dependent on agriculture for their livelihood, especially when they don't have systems in place to counter the effects of climate shocks.
  • "It is shocking that, after a prolonged decline, this is the third consecutive year of rising hunger. The inescapable fact is that climate change is now leaving people around the world without enough to eat," Robin Willoughby, head of food and climate policy at Oxfam GB, told The Guardian.

The big picture: Climate change has the potential to erode the gains made toward fighting global hunger over the past decade — which were largely due to political stability, economic growth and greater social protections in the developing world — as extreme weather kicks off more and more societal crises around the world. Some specific weather trends are triggering the worst climate shocks on food stores:

  • Higher temperatures — and spikes in temperature anomalies — can affect crop yields.
  • Severe droughts and floods linked to climate change have both seen an uptick in recent years — most notably, flood-related disasters spiked 65% in the last quarter-century.
  • Changes in seasonality, especially in the developing world, throw off rainfall patterns and growing seasons.

Of the 51 countries that faced food crises in 2017, 34 had climate shocks, per the UN report. The food security threat deepened in the 14 countries that simultaneously faced conflict and regional instability in addition to climate shocks.

  • Yemen, where 22 million out of 27 million citizens are in need of humanitarian assistance, perhaps best represents this horror. Already one of the world's poorest countries, Yemen faces the combination of an ongoing civil war and serious famine that led UN Ambassador Nikki Haley to remark "no one should ever have to live the way the people of Yemen are living."

The bottom line: Without significant action to address climate change, some of the world's most vulnerable citizens may face increasing risk from global hunger, which was on a marked downward trend just 5 years ago — and the UN had hoped to eliminate fully by 2030.

Go deeper:

Go deeper

2 hours ago - World

Report: LGBTQ+ Afghans' lives "dramatically worsened" under Taliban rule

Taliban fighters in Kabul, Afghanistan, earlier this month. Photo: Mohd Rasfan/AFP via Getty Images

LGBTQ+ Afghans have been threatened, attacked and "faced an increasingly desperate situation and grave threats to their safety" since the Taliban seized control of Afghanistan last August, per a report published Wednesday.

What they're saying: "We spoke with LGBT Afghans who have survived gang rape, mob attacks, or have been hunted by their own family members who joined the Taliban, and they have no hope that state institutions will protect them," per a statement from study co-author J. Lester Feder.

4 hours ago - World

Canadian Indigenous group finds 93 suspected unmarked graves

A makeshift memorial honoring the 215 children whose remains were found in a mass grave in Brantford, Ontario, Canada, last May. Photo: Cole Burston/AFP via Getty Images

Indigenous leaders in Canada's western province of British Columbia said Tuesday they believe they've found 93 unmarked graves near a former boarding school.

The big picture: Hundreds of mass graves have been found at the grounds of former residential schools for Indigenous children since last May, when the remains of 215 children were uncovered at one such site in B.C.

6 hours ago - World

Coast Guard searches for 39 people after boat capsizes off Florida coast

A U.S. Coast Guard ship leaving its base in Miami Beach, Florida, in July. Photo: AP/Marta Lavandier

U.S. Coast Guard crews were searching into the night for 39 people whose boat sank off Florida's coast over the weekend after traveling from the Bahamas.

The big picture: A "good Samaritan" contacted the Coast Guard about 8 a.m. Tuesday to say they "rescued a man clinging to a capsized vessel" 45 miles east of Fort Pierce, per a tweet from the agency, which noted it was dealing with "a suspected human smuggling venture."