global climate

UN News examines how the recent global energy crisis has accelerated the shift toward renewable energy, arguing that solar, wind and other clean sources are redefining what energy security means for countries worldwide. The piece frames the transition away from fossil fuels as both a climate necessity and a strategic move to reduce dependence on volatile fuel supplies.

World leaders continued addressing the United Nations General Assembly in New York on the sixth day of the annual high-level debate. The sessions, broadcast live, feature speeches from heads of state and government on topics ranging from conflict and security to climate and development, drawing international attention to the diplomatic calendar's most prominent gathering.

World leaders, citing climate change as an existential threat, are demanding that the United Nations function effectively on the issue. The call reflects frustration among governments over stalled international climate action and the UN's struggles to deliver coordinated global responses to warming, extreme weather and rising sea levels affecting member states.

The 2023-24 El Niño is described as record-shattering, with analysis of its wide-ranging effects on global temperatures, weather patterns and ecosystems. The event has driven exceptional ocean warming in the tropical Pacific, contributing to record global heat, shifts in rainfall, droughts and flooding in various regions, and stress on fisheries and agriculture. Commentators are weighing how much of the recent temperature surge should be attributed to El Niño versus longer-term climate change.

Leaders of Pacific island nations used their addresses at the UN General Assembly to highlight the existential threats climate change poses to their countries, including rising sea levels and extreme weather. They urged the international community to take stronger action on emissions and to support vulnerable states facing displacement and loss of land.

Discussion is turning to what it means for global warming to exceed the Paris Agreement's 1.5°C threshold. Commentators are explaining that breaching the limit does not mean climate action is pointless, but signals that average temperatures have risen beyond the target, with worsening heatwaves, sea-level rise and ecosystem stress. The debate centres on how overshoot could be temporary and whether warming can be brought back down.

The Vatican has formally described the destruction of the environment as an 'ecological sin', a move championed by Pope Francis as part of his push to make climate protection a moral and religious duty. The framing, promoted through France 24's 'Down to Earth' programme, has drawn attention to how the Catholic Church is seeking to mobilise its global followers around environmental responsibility and the ethics of caring for the planet.

The United Nations has declared that solving climate change is a 'decisive test of global solidarity', framing collective action on emissions and adaptation as the defining challenge for international cooperation. The statement underscores growing pressure on governments to deliver coordinated commitments, with the UN urging countries to set aside divisions and treat the climate crisis as a shared responsibility requiring joint effort.

UN Secretary-General António Guterres used his final address to the UN General Assembly to warn that superpowers alone cannot solve the world's problems, touching on climate change and global cooperation. The speech, covered by The Guardian, is being shared widely as it marks the end of his tenure and delivers a pointed message to major powers about shared responsibility.

The UN General Assembly's general debate continued into its fifth day in New York, with world leaders and foreign ministers taking the rostrum to lay out their governments' positions on conflicts, climate and development. UN News is summarising the day's key speeches and moments for audiences following the annual high-level week.

A new report says global temperatures have reached record highs as the El Niño climate pattern strengthens in the Pacific. El Niño, which warms ocean surface waters and alters weather worldwide, is adding to the underlying warming trend driven by greenhouse gas emissions. Scientists warn the combination could push average temperatures to new extremes in the coming months, with implications for heatwaves, droughts and storms across many regions.

The International Union for Conservation of Nature used the UN General Assembly and New York Climate Week to advance its agenda on nature protection, ocean conservation and climate action. The organisation says the gatherings offered a key moment to push for stronger commitments linking biodiversity and climate policy ahead of upcoming global negotiations.

World leaders gathered at the United Nations General Assembly told one another that humanity is 'in this together', a message of shared responsibility on global challenges. The line has been picked up widely across US and international outlets, but commentary is focusing on the practical question: how that solidarity would actually operate in practice on issues like conflict, climate and cooperation.

The Guardian examines a common corporate argument that individual companies' fossil fuel emissions are too small to matter, a 'drop in the ocean' compared to global totals. The piece asks what the picture would look like if the full real-world costs of those emissions were properly counted, challenging firms to account for their cumulative contribution to climate damage rather than deflecting responsibility.

A UK climate minister has warned that the global food system is vulnerable to El Niño, the periodic warming of Pacific Ocean waters that disrupts weather patterns and can hit crop harvests. The warning highlights concerns that extreme weather linked to El Niño could drive up food prices and threaten supply security at a time of already strained agricultural conditions.

Island nations facing severe impacts from climate change say they are not giving up the fight, continuing to press for action despite mounting threats such as rising seas and extreme weather. Their representatives emphasize resilience and ongoing advocacy on the global stage.

The Bank of Japan is increasing its lending scheme that channels funds to banks supporting climate action, a programme first introduced in 2021. The move comes as policymakers and economists argue over how far central banks should go in supporting green goals, with critics warning that climate policy sits outside monetary mandates and supporters arguing financial stability depends on it.

Scientists report that as the Pacific Ocean warms, its water-age structure is behaving counterintuitively: young water at the surface appears to be aging, while older deep water is getting younger, a reversal of established circulation patterns. The finding suggests climate change may be disrupting the ocean's overturning circulation, with potential consequences for heat and carbon storage. Researchers say the shift warrants closer monitoring of how the Pacific redistributes heat as global temperatures rise.

A New York Times opinion piece warns that the current strong El Niño, a warming of the tropical Pacific that shifts global weather patterns, is set to drive severe conditions including heatwaves, droughts, floods and storms across many regions. The author urges governments and the public to prepare now for the disruption, arguing that early planning could limit the damage as the phenomenon reaches full strength in the coming months.

New analysis indicates the global heatwave season has expanded by roughly 39 days, with extreme heat now arriving earlier in the year and lasting longer than before. Researchers attribute the lengthening season to warming temperatures, warning that prolonged exposure raises health risks and strains infrastructure. Coverage highlights how gradual change can go unnoticed even as extreme heat events become more frequent and severe.

A commentary argues that human rights and climate change can no longer be treated as separate issues, framing rising temperatures, displacement and resource shortages as direct threats to basic rights such as housing, food and safety. The piece calls for rights-based approaches in climate policy, a debate gaining traction among advocates and policymakers as climate impacts intensify worldwide.

New figures show the world added around 690 gigawatts of solar power capacity in 2025, according to reporting by pv magazine. The total underscores the continued rapid expansion of solar energy worldwide, as installations keep outpacing forecasts driven by falling costs and strong demand in major markets. Industry observers are weighing what the record-scale buildout means for grids, fossil fuel demand and global climate targets.

Commentators argue that as El Niño strengthens and disrupts weather patterns, more money should go toward supporting the world's farmers, who face crop failures and income losses from droughts and floods. The argument is that smallholder agriculture is underfunded despite being on the front line of climate shocks, and that investment in resilience is urgently needed.