Overview
- UNEP estimates place the world on roughly a 2.3–2.5 C path this century if current national pledges are delivered, or about 2.8 C under present policies.
- Greenhouse gas levels remain at records, with NOAA reporting 2015–2024 increases of 5.8% for CO2 and 5.2% for methane, even as WMO notes a marked slowdown in emissions growth compared with the pre‑Paris decade.
- Clean energy has expanded rapidly, with renewables providing most new electricity globally and IEA projecting $2.2 trillion in clean‑energy investment in 2025, more than double fossil spending.
- Electric‑vehicle sales have climbed from about 543,000 in 2015 to over 20 million in 2025, displacing an estimated 1.8 million barrels of oil per day.
- Negotiators highlight rising political headwinds, including a U.S. stance hostile to climate action and EU trade frictions, as the UN chief calls missing the 1.5 C goal a moral failure and researchers show fewer projected extreme‑heat days under today’s trajectory.