Nations grapple with loss of 1.5C target at UN climate summit

The 1.5°C climate target has become a focal point of contention at the recent UN climate summit, known as COP31, which is currently underway in Antalya, Turkey. For a decade, this benchmark has been the guiding star of global climate action, aimed at mitigating the worst impacts of a warming planet. However, recent developments have raised doubts about the feasibility of achieving this goal.

At COP27, the UN had declared that crossing the 1.5°C threshold was imminent and unavoidable, as the world had already warmed by about 1.4°C above pre-industrial levels. Despite this grim assessment, some nations, particularly those most vulnerable to the effects of climate change, remain committed to the 1.5°C target. Palau's President Surangel Whipps Jr., for instance, emphasized that 1.5°C is not an abstract goal for his island nation, which is threatened by rising sea levels.

However, other countries are divided on the issue, with some advocating for a final deal at COP31 that reaffirms the importance of the 1.5°C goal. This includes a push for language indicating that global temperatures are "still able" to be lowered once exceeding the threshold. On the other hand, a push to abandon the 1.5°C target is growing, particularly among some emerging economies like Saudi Arabia and India, who are members of the Arab Group and Like-Minded Developing Countries negotiating blocs.

The debate over the 1.5°C target has intensified as the costs of adaptation to climate change become increasingly apparent. A recent UN Environment Programme (UNEP) report revealed that developing countries may face adaptation costs ranging from $140-300 billion per year by 2030 and $280-500 billion per year by 2050, even if the world manages to limit warming to 1.5°C. This underscores the urgent need for action to reduce greenhouse gas emissions and mitigate the impacts of climate change.