"James Hansen's Ongoing Climate Warnings: 35 Years Later"

A new study led by former NASA scientist James Hansen suggests that global warming may be happening more quickly than previously estimated, with the planet potentially exceeding 1.5 degrees Celsius of warming this decade and warming by 2 degrees Celsius by 2050. While the 1.5-degree goal of the Paris Agreement is already out of reach, the 2-degree goal could still be met with urgent action to reduce greenhouse gas emissions and transition away from fossil fuels. The study's findings are based on an analysis of reconstructed temperatures and carbon dioxide levels over the past 66 million years, indicating a high sensitivity of the Earth's climate to greenhouse gases.