Overview

• Speaking at her morning press conference in Mexico City, Claudia Sheinbaum rejected President Donald Trump’s UN General Assembly claim that climate change is a hoax.
• She said instrumental records show about a 1.5°C increase in global average temperature since measurements began.
• She attributed the warming to higher atmospheric concentrations of carbon dioxide, methane and nitrous oxide that trap infrared radiation.
• She linked rising temperatures to shifts in ocean–atmosphere dynamics and to more frequent and intense cyclones and hurricanes.
• She called for cutting fossil‑fuel combustion to limit further warming, as Trump criticized EU decarbonization efforts and touted U.S. oil, gas and coal reserves.