So, Are We at 1.5ºC Now?

In this Climate Chat discussion, we discuss the recent controversy, partially caused by our interview last week with climate scientist Michael Mann, over whether we are at or close to 1.5ºC global average temperature anomaly "trend". While Dr. Mann and others say we are at a trend of about 1.3ºC now, others, including climate scientist James Hansen say we may at 1.5ºC now "for all practical purposes". We will discuss recent temperature measurements and the difference between a yearly reading like 2023 or "past 12 months" and what it means to be at or pass the 1.5ºC trend. We will also step back and discuss the value of milestones like 1.5ºC and 2ºC above the pre-industrial global average temperature. Related Climate Chat programs: Climate Wars and Fragile Moments: An interview with Climate Scientist Michael Mann https://youtube.com/live/T4sMkZKm91g “Accelerating” Debate on Global Warming: Interview with Dr. Zeke Hausfather https://youtube.com/live/LoegRrN-yvw Much Ado About Accelerating Warming: Interview with Gavin Schmidt https://youtube.com/live/mhvNVihv5Ww 2023: +1.54ºC! Why Is Global Warming Accelerating? Interview with Leon Simons https://youtube.com/live/XCPf8vvedSI James Hansen's Update On Global Warming Acceleration with Guest Leon Simons https://youtube.com/live/OcdZvdSh9LQ Climate Change: What to Know/What to Do with Climate Scientist James Hansen https://youtube.com/live/8Ag3UVSrlhE Follow Dan on X/Twitter: @danmiller999 To join the Zoom discussion, visit Dan's Clubhouse room. The link is provided in Dan's Twitter feed. You can also leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot. For more Climate Chat episodes, see our YouTube home page: https://www.youtube.com/channel/UC3BXcpYFCzTndJ9Fisi32qg