Climate Change Squeezes Colombia’s Natural Gas Reserves

In 2023, the Magdalena River's low levels have exposed vulnerabilities in Colombia's energy system. Domestic natural gas production has dropped by 25% since 2020, according to Colombia's Ministry of Mines and Energy. This decline has led the government to increase imports of liquefied natural gas (LNG), a costly shift with significant financial and environmental implications.

Climate change drives this transition. Erratic rainfall patterns, linked to a warming Pacific and intensified El Niño cycles, have reduced hydropower output, crucial for Colombia’s energy mix. Rising sea levels have caused saltwater intrusion in coastal aquifers, disrupting natural gas wells in historically productive areas.

Carlos Felipe Rodríguez, an energy consultant at Integral Energies, said, “Natural gas was supposed to be Colombia’s transitional fuel, bridging us to a lower-carbon future.” Proven reserves have dwindled to just seven years of consumption at 2022 levels, down from 13 years in 2015.

The pivot to LNG imports has intensified. In June 2023, Colombia signed a multi-year supply deal with Trinidad and Tobago, securing access to 1.5 billion cubic meters (BCM) of LNG annually. In contrast, domestic natural gas production fell below 9 BCM in 2022, the lowest since the mid-1990s. LNG imports come at a premium: prices soared to $15 per million British thermal units (MMBtu) during peak winter demand in 2022, compared to $3–$5/MMBtu for domestic gas.

This reliance on LNG presents infrastructural challenges. The Cartagena LNG import terminal, operational since 2016, was intended for seasonal variances, not as a long-term solution. Plans for a second terminal on the Pacific coast are stalled due to financing issues and local opposition over ecological concerns.

“Communities in the Nariño region fear that new LNG infrastructure will disrupt marine ecosystems already affected by warming waters and overfishing,” said Daniela Ruiz, a policy analyst at the Center for Climate and Energy Decisions. She emphasized the need for the government to align energy priorities with the realities of coastal populations: “The government needs to balance immediate supply security with long-term sustainability.”

Energy security issues extend beyond Colombia. The International Energy Agency highlighted growing vulnerabilities in energy markets as climate impacts escalate. Latin America, heavily reliant on hydropower, faces significant risks as changing rainfall patterns threaten reliability. Colombia exemplifies this trend, where dependence on a single energy source has proven inadequate amid compounding crises.

Under President Gustavo Petro, the national government has committed to revamping energy policy to emphasize renewable sources like wind and solar. In July 2023, the Ministry of Mines and Energy launched its “Accelerated Energy Transition Plan,” targeting 2,500 megawatts (MW) of new solar capacity and 1,000 MW of wind capacity by 2030. However, challenges remain, including grid connectivity and community resistance to wind farms in La Guajira.

Colombia’s shift to LNG serves as a cautionary tale. The country’s struggles highlight the fragility of energy systems reliant on fossil fuels amid climate disruptions. Analysts warn that heavy reliance on imported LNG could entrench Colombia in a costly, carbon-intensive trajectory, contradicting its climate commitments under the Paris Agreement. The nation aims to reduce greenhouse gas emissions by 51% by 2030 compared to 2010 levels. Yet as of 2022, it is far from achieving this goal, with the energy sector contributing nearly 35% of national emissions.

The broader question of adaptation remains unresolved. As hydropower falters and gas reserves decline, the urgency for diversified and resilient energy systems grows. Whether Colombia can transition to a low-carbon future without exacerbating social and ecological tensions is uncertain. The dwindling waters of the Magdalena River signal more than a hydrological crisis; they warn that the era of energy abundance is fading. Colombia's response to this challenge will shape the future for other nations facing climate change and energy insecurity.