As climate storm gathers, Pacific islands race to set up warning systems

The project includes installing meteorological observation points in each of the five countries and providing improved observation equipment, such as automatic weather stations, Doppler radars, marine weather buoys and ocean sensors. 

There have already been some promising results. 

Under the UNEP programme, a pilot early warning system has been rolled out across all 15 of the isles of the Cook Islands. The system was used to provide early warning of a coastal inundation event in Rarotonga, the country’s largest island, in May 2023. Its launch followed storm surges in 2022 that pounded beachfront properties and reportedly took locals by surprise. 

In Niue, a similar UNEP-backed system allowed meteorologists to better understand the mechanics of a storm that hit the island nation in March and April of 2024. 

In the Republic of Marshall Islands, the UNEP programme is helping to improve the monitoring of coral reefs, many of which bleached and died when water temperatures surged in 2014. Teams are working to install coral health kits and other ocean monitoring tools that track water temperature, helping to forecast bleaching events. They also plan to distribute paper scorecards that will allow communities in remote areas to grade the health of corals. That information will then be shared with Marshall Island Conservation Society, helping the group get a better handle on the state of the country’s corals. 

Healthy coral reefs are vital for supporting marine biodiversity, providing food and protein to coastal communities, and protecting shorelines against waves, storms and floods. Yet they are under relentless stress from climate change, which is warming ocean waters. 

“Much of the Marshall Islands consists of ocean, which means that we depend highly on our marine resources for our sustenance,” says Dua Randolph, Deputy Director of the Marshall Islands Conservation Society. “Coral bleaching is an existential threat for us.” 

Small island developing states are responsible for less than 1 per cent of the global greenhouse emissions that are driving climate change. But this group of 39 nations, home to a combined 65 million people, are bearing the brunt of the climate crisis.  

Only one-third have multi-hazard early warning systems, which can detect a range of potential disasters. As a result, people in small island developing states are 15 times more likely to die from climate disasters.  

“Small-island states are paying the price for decades of climate inaction by the rest of the world,” said Jian Liu, the director of UNEP’s Early Warning and Assessment Division. “There is an urgent need to invest in climate science and early warning systems to save lives and protect livelihoods in these countries.” 

The United Nations Secretary-General António Guterres has called for every person in the world to be covered by early warning systems by 2027. The development of a National Adaptation Plan is an essential milestone in a country’s efforts to build climate resilience, experts say. They can be used to significantly improve early warning systems by funding the installation of automatic weather stations and other monitoring equipment.   

Besides saving lives and livelihoods, early warning systems can benefit the environment. Improved observations and hazard mapping can raise the alarm about ecosystem vulnerabilities, and empower decision makers to take action to safeguard natural resources. 

A major component of the UNEP programme is helping countries to prioritize climate resilience in their decision making, with Tuvalu the first to finalize its National Framework for Weather, Climate and Ocean Services under the programme.  

Community engagement is another key feature of the programme. Niue has used education campaigns to bring greater awareness of the importance of climate information and early warning systems to school children. 

The five-nation UNEP programme is expected to benefit at least 80 per cent of the islands’ populations and achieve a 15-30 per cent reduction in climate-related damage and losses. 

“The sad reality is that our climate has already changed and it will continue to change,” says UNEP’s Liu. “But with early warning systems, we can help to minimize the fallout of climate-related disasters – and give island nations a fighting chance.” 
 

The Sectoral Solution to the climate crisis  

UNEP is at the forefront of supporting the Paris Agreement goal of keeping global temperature rise well below 2°C, and aiming for 1.5°C, compared to pre-industrial levels. To do this, UNEP has developed the Sectoral Solution, a roadmap to reducing emissions across sectors in line with the Paris Agreement commitments and in pursuit of climate stability. The six sectors identified are: energy; industry; agriculture and food; forests and land use; transport; and buildings and cities.