Global warming to exceed 1.5°C by 2030: Scientists

Key facts

• Global temperatures are projected to exceed 1.5°C by 2030.
• Human-induced warming reached 1.37°C in 2025.
• Record greenhouse gas levels are driving warming trends.
• New Zealand may need to spend up to NZ$5 billion on carbon credits.
• New Zealand's domestic emissions reductions may fall short of Paris Agreement targets.
• The UN Cop 30 summit will consider diverse national circumstances in its roadmap.
• The Cop 30 roadmap will focus on transitioning away from fossil fuels.
• OPEC has lowered its 2026 global oil demand growth forecast.
• OPEC's 2026 oil demand growth forecast is 970,000 barrels per day.
• OPEC anticipates a strong rebound in oil demand in 2027.

Scientists project that global temperatures will exceed the 1.5°C limit established by the Paris Agreement within the next four years, by 2030. Human-induced warming has already reached 1.37°C in 2025, driven by record levels of greenhouse gases in the atmosphere. This projection highlights the urgency of climate action and the challenges in meeting international climate goals.

New Zealand faces a potential significant expenditure to meet its climate commitments. A Treasury paper indicates the country may need to allocate up to NZ$5 billion (approximately $2.89 billion) for the purchase of international carbon credits. This necessity arises because projected domestic emissions reductions are anticipated to fall short of the nation's Paris Agreement obligations.

The roadmap for the UN Cop 30 climate summit will be drafted to accommodate diverse national circumstances. The summit presidency intends to create a plan for transitioning away from fossil fuels that considers factors such as socioeconomic development and energy access for different nations. Key areas of focus for this plan include reforming the financial architecture, enhancing capacity building, and upholding principles of a just transition.

In the energy sector, OPEC has revised its forecast for global oil demand growth. The organization has lowered its projection for 2026 to 970,000 barrels per day. This downward revision is attributed to anticipated reduced demand in India and the Middle East. Despite this short-term adjustment, OPEC expects a robust rebound in oil demand in 2027.