Pacific island nations are already being battered by king tides, catastrophic cyclones and sustained droughts
Global heating above 1.5C will be “catastrophic” for Pacific island nations and could lead to the loss of entire countries due to sea level rise within the century, experts have warned.
The Pacific has long been seen as the “canary in the coalmine” for the climate crisis, as the region has suffered from king tides, catastrophic cyclones, increasing salinity in water tables making growing crops impossible, sustained droughts, and the loss of low-lying islands to sea level rise. These crises are expected to increase in frequency and severity as the world heats.
The warnings come as the Intergovernmental Panel on Climate Change (IPCC) published its landmark report on global heating on Monday, which showed that greenhouse gas emissions needed to be halved to limit heating to 1.5C above pre-industrial levels – a target that was included in the Paris Agreement only after sustained lobbying by Pacific island leaders.
“The [IPCC] report is very alarming,” Satyendra Prasad, Fiji’s ambassador and permanent representative to United Nations, said. “It comes out exceeding where we all thought the estimates were … it brings forward some of the catastrophic scenarios that we have been thinking about in the Pacific of sea level rise, loss of low-lying lands, and possible loss of entire countries within the century. The timelines for these things will certainly be brought much closer.”
The IPCC report presented five scenarios based on varying levels of CO2 and other greenhouse gas emissions. Under the high and very high emissions scenarios outlined in the report, global heating is predicted to reach 3.6C and 4.4C above pre-industrial levels respectively, by the end of the century. Even in the intermediate scenario global warming of 2C would be extremely likely to be exceeded.
The report found that every additional 0.5C of global warming causes clearly discernible increases in the intensity and frequency of heatwaves, heavy rainfall, droughts and extreme weather events.
Prasad said the impact of global heating had been felt across the Pacific for years.
“Catastrophic floods and storms have been occurring with considerable frequency: once in 50- to 100-year events have been happening every 10 years. Immediately one can conjecture that catastrophic cyclones, super cyclones, prolonged drought, will become much more frequent and much more intense across the Pacific small islands,” he said.
A new report by Greenpeace Australia Pacific has highlighted the stark climate injustice faced by the Pacific region, which is one of the lowest carbon-emitting regions in the world, responsible for just 0.23% of global emissions, yet has suffered some of the earliest and most severe impacts of rising global temperatures.
“If we look at what those impacts are, probably more than anywhere else, the Pacific is most hit,” said Dr Nikola Casule, head of research and investigations at Greenpeace Australia Pacific.
“We’re going to see more salinity, we’re going to see sea level rise … [that] would mean that significant parts of places like Kiribati, Vanuatu, Solomon Islands, just become uninhabitable.”
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