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Posts Tagged ‘The Intergovernmental Panel on Climate Change’

How High Will Temperatures Rise in My Lifetime?

Do you want to know how much hotter the world has become since you were born? Or how much hotter it will get over the rest of your life?  Now you can, thanks to a new nifty interactive graphic by Duncan Clark. Read More

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2° C or Not 2° C: Insights from the Latest IPCC Climate Report

In his “To Be or Not to Be” soliloquy, Shakespeare’s Hamlet eloquently presents each of us with an opportunity to wrestle with the timeless question of how to respond to the slings and arrows of life’s outrageous fortunes.

With today’s release of the Summary for Policymakers of Working Group I:  The Physical Science Basis, the Intergovernmental Panel on Climate Change’s (IPCC) Fifth Assessment Report (AR5) presents us with a very different opportunity to wrestle with our collective response to the slings and arrows of unabated carbon emissions on our warming planet. To be sure, the formal language of the IPCC is far less eloquent than Shakespeare’s, but the authoritative and cautiously-written climate science synthesis provokes us to confront profoundly important questions – questions that are hugely time-sensitive, not timeless. Read More

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Hot Topics for IPCC Release: Surface Temperature “Speed Bump” and the Latest on Extreme Events

Residents in Colorado are recovering from extremely rare precipitation the second week of September that was ten times greater than the average precipitation for this time of year. On September 19, Usagi reached “Super-typhoon” status with wind gusts over 160 miles per hour (over 71 meters per second). Better predictions about these events in real time are saving lives. At the same time, scientists are studying these events with more urgency so even more lives can potentially be saved.  What does the latest science tell us about these rare events? And what about the recent trend in global average surface air temperature that has been in the news of late?

The Intergovernmental Panel on Climate Change (IPCC) is poised to release the latest climate assessment “summary for policymakers” in Stockholm, Sweden, when they meet September 23 – 26, where these hot topics will be addressed. Read More

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How Accurate are Future Projections of Climate Change? A Look at Past IPCC Reports Provides Some Answers

Guest Bogger

James J. McCarthy, chairman of UCS board of directors and professor
Biological Oceanography, Harvard University

Cambridge, MA

The Intergovernmental Panel on Climate Change (IPCC) has established a strong track record for projecting the future consequences of climate change. Though the process for producing the report can seem opaque from the outside, we can put great confidence in the body’s findings. Read More

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Disappearing Glaciers, Melting Ice Sheets, and Rising Seas to be Highlighted in Forthcoming IPCC Report

In a few weeks, the latest United Nations / World Meteorological Organization assessment of the state of the climate will be released by the Intergovernmental Panel on Climate Change (IPCC). The IPCC report will include revised estimates of the rate of sea level rise, both from ocean water expanding and from contributions from snow and ice melting. Read More

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Creating the IPCC: How to Speak Truth to Power

Guest Bogger

Spencer Weart, former director
Center for History of Physics, American Institute of Physics

College Park, Maryland

The Intergovernmental Panel on Climate Change (IPCC) is unlike any other scientific body in the world. Its reports, which help set the agenda for international climate policy negotiations, are produced by scientists and vetted through government representatives in a process that is notoriously long and labor-intensive. As we look forward to the next round of IPCC reports, it’s worth looking back on how the institution was created. Read More

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