Countries aiming to enhance their national security through rearment or increased defense budgets must simultaneously strengthen their climate initiatives, according to Ana Toni, the chief executive of Brazil's upcoming COP30 summit.

She warned that neglecting climate action could lead to increased conflict in the future.

Toni, who is a leading figure coordinating the COP30 conference in Belém, Brazil, stated that climate change acts as an accelerator of inequalities and poverty.

She indicated that these conditions are likely to contribute to future conflicts, highlighting the need to view climate change mitigation as intertwined with broader security issues.

At the core of COP30's agenda is the expectation that nations will present stringent plans to reduce greenhouse gas emissions.

However, preparations for the summit have been complicated by evolving global geopolitical dynamics, particularly among developed nations.

In response to geopolitical tensions, including US foreign policy changes and the war in Ukraine, many countries, especially within the European Union and the UK, are increasing defense spending.

Notably, the former US President Donald Trump has proposed withdrawing the US from the Paris climate agreement, which raises concerns about international climate commitments.

Toni stated that nations should not treat climate action and defense spending as mutually exclusive, emphasizing that retreating from climate efforts could significantly jeopardize future security.

She pointed out that while wars may be temporary, the impacts of climate change are enduring.

Thus, she argued that countries must balance immediate defense needs with long-term climate strategies to avert future conflicts arising from climate crises.

In a recent coalition accord, Germany has pledged €100 billion (approximately £85 billion) for climate-related initiatives over the next 12 years, reinforcing its defense budget by relaxing past constraints on national debt.

Conversely, the UK government has announced cuts to foreign aid and potential reductions in renewable energy funding to accommodate increased military spending, raising concerns over the implications for climate action in developing regions.

Toni addressed the UK’s budgetary choices, expressing her dismay at reduced support for developing nations, which experts warn may hinder their climate response capabilities.

In collaboration with the Azerbaijani government, which hosted COP29, Brazil is working to outline a strategy for developed countries to meet a global commitment to provide $300 billion (£230 billion) annually for climate financing to developing nations by 2035.

During a three-day visit to China, Ed Miliband, the UK’s Secretary of State for Energy and Net Zero, discussed international climate cooperation.

Toni noted that China's commitment to reducing carbon emissions is unlikely to wane despite shifts in US climate policy.

She argued that Chinese firms are advancing decarbonization efforts, recognizing its potential economic benefits.

The global consensus remains dedicated to transitioning away from fossil fuels, with all nations expected to reflect this priority in their nationally determined contributions (NDCs) under the Paris agreement.

Toni stressed that developing nations could frame their NDCs as investment plans to attract both public and private funding, asserting that future development must integrate climate considerations effectively.