At least 9,000 years ago, humans began domesticating corn for the first time near Tehuacan, in the central Mexican state of Puebla, laying the foundation for permanent settlements in the Americas.
But in the past few years, more frequent and longer droughts have forced many farmers in the area to give up corn and other cereals in favor of alternatives requiring less water such as pistachio nuts or cactus.
Agricultural experts predict parts of Mexico will feel the effects of climate change more than many countries, not least because its location between two oceans and straddling the Tropic of Cancer expose it to weather volatility.
Sol Ortiz, director of the agriculture ministry’s climate change group noted that 75% of Mexico’s soil is already considered too dry to cultivate crops. In regions such as Tehuacan, temperatures may rise more than the global average.
“We know there are areas where the increase is going to be greater. That will obviously affect rain patterns, and in turn, agriculture and food security,” Ortiz said.
The area under corn cultivation in Tehuacan decreased 18% to about 40,000 hectares between 2015 and last year, a Reuters calculation using statistics by the agriculture ministry shows, outstripping a nationwide decline.
In the five years before that, the area planted with corn had been slowly increasing in Tehuacan.
Nationally, the area under corn cultivation declined 4% from 2015 to 7.4 million hectares last year. While factors leading farmers to switch crops are complex, in Tehuacan farmers and local officials describe fast-changing climate as a leading cause.
Mexico’s rainy season last year was the driest since 2011, which in turn was one of the driest on record, numbers from the country’s national water agency showed.
Climate change is expected to cause substantial declines in yields of corn globally, especially in the tropics, a 2018 study published in the U.S. Proceedings of the National Academy of Science concluded.
There may be exceptions. The corn belt in the U.S. Midwest is so vast that one recent study concluded the expanses of lush fields were actually helping increase rainfall locally and also cut temperatures, thus allowing even more corn to be grown.
Under this model, intensive farming meant more moisture being released into the atmosphere from plants on a scale great enough to create more rainfall. The greater humidity also contributed to summers up to 1 degree Celsius cooler, the study by Massachusetts Institute of Technology concluded.
In Tehuacan, however, conditions are fast changing for the worse. In a field where dried out plants have been lingering in the dust since the last drought, farmer Porfirio Garcia, holding a stunted cob, was struggling to make sense of it all.
Corn has for thousands of years been a symbol of Mexican pride, a staple of local and national cuisine from tortillas to tamales and the backbone of civilizations that gave rise to modern Mexico. But climate change has jeopardized that.
Garcia, who has 12 children, half of them working with him on the farm, recalls how one hectare in some years yielded as many as four tonnes (8,800 lbs) of corn In the past five years, he said, with luck it yielded 700 kg (1,543 lbs).
“The corn harvest has shrunk because in the months of June, July, August and September there was no rain,” said Garcia, 59, who uses ancestral farming techniques to grow corn, beans and pumpkin, an ancient system called a “milpa”.
“Our lives center on corn so what do we do without it?”
Eusebio Olmedo, director of rural development, agriculture and livestock in Tehuacan, recalls that it began to get hotter at the turn of the millennium.
Having worked in the department for five years, Olmedo said the area used to be characterized by a “very pleasant, very benevolent” climate.
Last year was the warmest on record in the state of Puebla – where Tehuacan is located – with thermometers reaching an average maximum temperature of 26.8 Celsius (80 F). In 1985, the first year the available state records show, Puebla registered an average maximum temperature of 24.7 Celsius (76 F).
A 2016 study commissioned by the environment ministry and backed by the U.N. Development Program concluded climate change in Mexico will mean less rain, lower yields for basic grains such as corn, beans and wheat, as well as “unexpected effects on food security.”
“When rain patterns change, agriculture becomes risky,” Olmedo said.
Mexican corn farmers have suffered major shocks in the past – most notably the arrival of cheap imports from the United States under the NAFTA free trade agreement in the 1990s.
In the north of Mexico, where large corn fields are irrigated, climate change may initially have little impact, studies show.
But in the south, where the oldest corn strains on earth are grown using traditional methods without irrigation, the changing rain patterns and temperatures are already being felt.
Agricultural consulting group GCMA estimates Mexican corn production will continue to decline in 2020, and that corn imports mainly from the United States will reach a record 18 million tons.
Mexico is now the world’s second-largest corn importer thanks to a reliance on U.S. grain for animal feed. President Andres Manuel Lopez Obrador calls that “a contradiction” and has implemented programs to boost national production.
Garcia, however, chose to diversify into other crops, planting 300 trees of pistachio, a desert plant that can withstand temperatures between minus 10 and 40 degrees Celsius (14 F and 104 F).
Nearby farmer Natalio De Santiago also abandoned the corn that he, his father and his grandfather used to plant for other crops that require less water. Those include maguey, a raw ingredient for mezcal, a Mexican liquor.
“I stopped sowing (corn) because the weather is changing,” said De Santiago, 56. “Now I plant maguey because it needs less water.”
Wearing a cowboy hat to shield his face from the sun, he said he irrigates 400 maguey plants every month with a liter of water each. When he planted corn, he said, his crops needed four months of rain.
Others in the area gave up agriculture altogether and sold land to real estate developers.
In an attempt to stop this trend, local authorities developed a bank of native corn seeds more resistant to pests and that need less water.
“We have to adapt to climate change, and these are the best varieties to recover food self-sufficiency,” Olmedo said of the seeds.
Other government measures meant to help farmers adapt to and mitigate the effects of climate change include agricultural insurance, alternative crops and campaigns to reduce agricultural burning.
“It’s very difficult to reverse the tendency to increase CO2 (carbon dioxide) in the atmosphere,” said the agricultural ministry’s Ortiz. “That’s why we’re prioritizing adaptation.”
“Climate change is here to stay.” he added.
Reporting by Diego Ore; Editing by Frank Jack Daniel and Alistair Bell
Trending News on PVDN
- Popocatépetl Volcano Exhibits Increased Activity; Yellow Phase 3 Alert Continues PUERTO VALLARTA (PVDN) - In the past 24 hours, heightened activity was recorded from Mexico's Popocatépetl volcano, with an alarming 315 exhalations detected, accompanied by water vapor, other volcanic gases, and ash, according to the Scientific Advisory Committee (CCA) of the National Civil Protection System (SINAPROC). Monitoring systems in place around the active stratovolcano also…
- ‘Kingdoms of Mexico’ Distinction Launches to Boost Tourist Destinations With European Influences Puerto Vallarta (PVDN) - Miguel Torruco Marqués, the head of the Ministry of Tourism (Sectur), introduced the new 'Kingdoms of Mexico' distinction, a major initiative designed to enhance the appeal of Mexico's tourist communities on an international level. The announcement came during a presentation attended by the governors of Tlaxcala, Lorena Cuéllar Cisneros; Baja California,…
- Puerto Vallarta Set to Celebrate 105th Anniversary as Municipality and 55th as a City with Grand Festivities PUERTO VALLARTA - The coastal paradise of Puerto Vallarta is poised to celebrate two landmark anniversaries: the 105th anniversary of its recognition as a municipality and the 55th anniversary of its elevation to city status, with a grand commemoration on May 31, 2023. The celebrations have been meticulously planned by the municipal government led by…
- Popocatépetl Volcano Resumes Activity; Authorities Maintain Alert Status PUERTO VALLARTA (PVDN) - After a period of relative calm last week, Mexico's Popocatépetl volcano resumed minor activity on Friday night and through Saturday night, as reported by the National Civil Protection Coordination (CNPC). This comes following significant explosions last weekend that put nearby communities on high alert. The resumed activity was characterized by minor…
- Two More Puerto Vallarta Beaches Are Awarded Blue Flags Puerto Vallarta (PVDN) - In the upcoming 2023-2024 season, Puerto Vallarta is set to host six beaches awarded with the Blue Flag accreditation, an esteemed international recognition for high environmental and quality standards. The Blue Flag committee has reconfirmed the status for four previously certified beaches while conferring this prestigious title to two new beaches…
- LGBTIQ+ Community Member Disappears At Puerto Vallarta Pride PUERTO VALLARTA - A member of the local LGBTIQ+ community has gone missing under mysterious circumstances, inciting deep concern within the community and calls for immediate action from local authorities. Rubén Michel Castro Guizar, 32, a deaf individual, was last seen on the night of Thursday, May 25th, attending the Vallarta Pride march. His disappearance…
- Trans Fats Ban in Mexico Will Prohibit the Sale of Cookies, Chips, Pizzas, and More in September Puerto Vallarta (PVDN) - The Chamber of Deputies in Mexico has taken a critical step in the battle against heart disease, approving a decree that reforms the General Health Law to restrict the use of trans fats and oils. The move is predicted to save more than 13,000 lives per year, with these substances currently…
- Mothers Searching For Their Missing Children Uncover Presumed Clandesant Grave in Puerto Vallarta PUERTO VALLARTA (PVDN) - A team of mothers seeking their missing children made a chilling discovery on the outskirts of Puerto Vallarta Saturday afternoon: a skeleton, fragments of bones, and several indications pointing towards a potential site of illegal body disposal. The area of discovery, located near the road to Viejo el Veladero, close to…
- Tactical Groups Are Added to the Streets and Beaches of Puerto Vallarta Puerto Vallarta (PVDN) - As a component of the safety strategies initiated at the Citizen Security Police Station, members from the Tactical Operations Group (GOT) have been bolstering street patrols all over Puerto Vallarta. Following directives from Commissioner Rigoberto Flores Parra and Mayor Luis Alberto Michel Rodríguez, these officers ensure a visible and protective presence…
- SEAPAL Vallarta Launches New Vallarta II Tank to Reinforce Drinking Water Supply PUERTO VALLARTA (PVDN) - SEAPAL Vallarta, the local water management authority, announced the successful integration and activation of the new Vallarta II Tank to its drinking water distribution system on Tuesday, May 30. This strategic addition is expected to enhance the availability of water in Vallarta homes, a pressing issue in the wake of the…