MEXICO · ECONOMY · CLIMATE
Key Facts
- —The country Mexico is one of the largest trading partners of the United States and Latin America’s second-biggest economy. Moody’s rates its government debt Baa3, the lowest investment grade, since May 2026.
- —What happened A Moody’s analyst warned that Mexico needs to mobilise resources equal to about 2.5 percent of its GDP to face climate change. On the IMF’s estimate of 2026 output, that is roughly US$54 billion.
- —Why it matters Paying alone would mean the state almost doubling its investment while it tries to cut its deficit. Public investment is budgeted at 2.6 percent of GDP for 2027.
- —The backdrop Moody’s expects growth of only 1.3 percent in 2027, below the government’s range of 1.5 to 2.5 percent. It sees public debt passing 52 percent of GDP this year.
- —What it means for you Private and foreign money would have to fill much of the gap, through green and sustainable bonds and blended finance. US investors would be among those asked to supply it.
- —Power Index Mexico ranks 2nd of 14 in The Rio Times Latin America Power Index, with 71.4 points (October 2026 edition).
- —Still open Over what period the 2.5 percent applies, what it covers, and how Moody’s calculated it.
Mexico needs to mobilise resources equal to about 2.5 percent of its gross domestic product (GDP) to face climate change, and the government will struggle to pay for it alone, a Moody’s analyst has warned. Adrián Garza, described by the newspaper Milenio as a sustainability analyst at the rating agency, made the estimate in an interview published on Sunday 18 October.
For US investors, the message is that much of the money will have to come from private and foreign capital, at a time when Mexico’s credit rating sits one notch above junk. On the International Monetary Fund’s latest estimate of Mexico’s 2026 output, about US$2.18 trillion, 2.5 percent is roughly US$54 billion.
What the Moody’s Analyst Said
“If the government wanted to do it all, it would have to almost double its investment,” Garza told Milenio. That is hard for any government, he added, “especially when it is seeking fiscal consolidation and to reduce its deficit”.
He said money is available, but Mexico has to compete for it with other sectors and other countries. Interest rates, regulatory risk and uncertain project revenues can keep capital away from sustainable investments, Milenio reported.
Garza named artificial intelligence and data centres as rivals for the same pool of capital. He called projects that combine sustainability with infrastructure that produces growth “extremely important”.
Garza did not say over what period the 2.5 percent applies, and Milenio did not cite a published Moody’s report for the figure. His comparison with the state’s own investment budget suggests a yearly sum, and the dollar figure above should be read with that caveat.
Weak Growth Limits the Budget
The warning follows a Moody’s report on Mexico published in September, which argues that structural constraints continue to weigh on the country’s growth prospects. It forecasts growth of 1.3 percent in 2027, below the 1.5 to 2.5 percent range in the government’s 2027 economic package, presented on 8 September.
Moody’s puts Mexico’s average real growth over the ten years to 2025 at 1.2 percent, down from 3.7 percent in 1999. It blames uncertainty over the USMCA, the trade agreement with the United States and Canada, and long-standing limits on investment and productivity.
Public investment averaged 3.1 percent of GDP between 2000 and 2025, about 40 percent of it in energy, the news site Infobae reported from the same study. The 2027 budget raises it to 2.6 percent of GDP from 2.2 percent in 2025, but Moody’s says more spending alone does not guarantee growth.
Debt adds to the squeeze, with Moody’s estimating government debt at 49 percent of GDP in 2025 and expecting it to pass 52 percent in 2026. Interest payments will absorb about 18 percent of government revenue this year, up from 11 percent in 2021, the agency estimates.
A Rating One Step Above Junk
Moody’s Ratings cut Mexico’s sovereign rating to Baa3 from Baa2 on 20 May 2026, the lowest rung of investment grade, and changed the outlook to stable. The agency cited a sustained weakening of public finances, rising debt and continued support for Petróleos Mexicanos (Pemex), the state oil company.
A lower sovereign rating tends to raise borrowing costs for the state and for companies whose ratings are tied to it. The Mexican bank Banorte told investors on 21 May that Moody’s had cut its own ratings in line with the sovereign action.
Where the Money Could Come From
Garza pointed to green, social and sustainable bonds, and to bonds tied to environmental targets, as tools Mexico already has. The country’s sustainable taxonomy, a rulebook that defines which activities count as green, can help set common criteria, he said.
He stressed that issuers must explain how they will use the money and show that projects meet their promises. Independent reviews known as second-party opinions can help verify that, he added.
Blended finance, which mixes public and private money with national and multilateral development banks, is another route. “These schemes have a lot of potential,” Garza said, because they spread risk and improve financing terms for private investors.
Why Climate Costs Matter in Mexico
Hurricane Otis made landfall near Acapulco as a Category 5 storm on 25 October 2023, the strongest landfalling hurricane in the eastern Pacific since the US National Hurricane Center took charge of the basin in 1988. It killed at least 52 people and caused an estimated US$12 billion to US$16 billion in damage, the costliest tropical cyclone on record for Mexico.
Losses on that scale fall on public budgets, insurers and private owners alike. That is the bill that investment in adaptation, from stronger buildings to better warning systems, is meant to shrink.
What It Means for You
For US investors, the gap Garza describes is both an opening and a warning. Mexico will need private and foreign money for climate projects, but with a Baa3 rating and slow growth, investors will want clear rules, solid contracts and real revenues before they commit.
For US companies with plants in Mexico, Garza’s point is that projects which add infrastructure and growth, not only a green label, are the ones most likely to win capital. Sovereign green and sustainable bonds remain the most direct way for portfolio investors to take part.
What Is Not Known
Moody’s has not published the calculation behind the 2.5 percent figure, and it is not clear whether it covers adaptation, emission cuts or both. Nor is it known over how many years the sum would be needed.
No government response to the estimate had been published by Monday 19 October. It is also not known how much private capital Mexico’s sustainable bonds and taxonomy have raised for climate projects so far.
Frequently Asked Questions
How much does Mexico need to invest to face climate change?
A Moody’s analyst estimates resources equal to about 2.5 percent of GDP, roughly US$54 billion on the IMF’s estimate of 2026 output. He did not say over what period the money would be needed.
Can the Mexican government pay for it alone?
Not easily, according to Moody’s analyst Adrián Garza. He said the state would have to almost double its investment at a time when it is trying to cut its deficit.
What is Mexico’s Moody’s credit rating?
Moody’s rates Mexico Baa3 with a stable outlook, the lowest investment grade. It cut the rating from Baa2 on 20 May 2026.
How fast will Mexico’s economy grow?
Moody’s forecasts growth of 1.3 percent in 2027. The government’s 2027 economic package expects between 1.5 and 2.5 percent.
Sources: Milenio, interview with Moody’s analyst Adrián Garza, 18 October 2026, Los Tubos, republication of the Milenio interview, 18 October 2026, Infobae, Moody’s report on structural constraints, 23 September 2026, Banorte, material event on the Moody’s sovereign action, 21 May 2026, El Universal, Moody’s downgrade to Baa3, 21 May 2026, International Monetary Fund, World Economic Outlook data, Mexico GDP in current US dollars, US National Hurricane Center, Tropical Cyclone Report on Hurricane Otis, Moody’s, Inside LatAm Mexico 2025 speaker list. All retrieved 19 October 2026. The US$54 billion figure is calculated as 2.5 percent of the IMF’s estimate of Mexico’s 2026 GDP, US$2,176 billion.
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
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