Tonga is frequently cited as one of the countries most at risk to the impacts of a changing climate. Extreme rainfall events are projected to become more frequent and more intense, and temperature highs will continue to rise, including sea temperatures, which will affect marine industries. Sea levels are expected to continue to rise above global averages, threatening agricultural production, infrastructure and human habitation. As part of its Nationally Determined Contributions, Tonga is targeting 70 per cent of its electricity generation to be from renewable sources (solar, wind and battery storage) by 2030. 

In 2023, MDF identified the following opportunities to mitigate climate change and increase climate resilience and adaptation:

Stimulating investment by businesses and households in rooftop solar to develop a domestic solar industry. 

Establishing a training course on solar installation and maintenance or informing similar work by others, such as the Tonga Australia Support Platform (TASP). 

Exploring opportunities to introduce electric vehicles (EVs) and related infrastructure.