Global warming Global mean land-ocean temperature change from 1880 to 2014, relative to the 1951–1980 mean. The black line is the annual mean and the red line is the 5-year running mean. The green bars show uncertainty estimates. Source: NASA GISS. The map shows the 10-year average (2000–2009) global mean temperature anomaly relative to the 1951–1980 mean. Fossil fuel related carbon dioxide (CO2) emissions compared to five of the IPCC's "SRES" emissions scenarios. Global warming and climate change can both refer to the observed century-scale rise in the average temperature of the Earth's climate system and its related effects, although climate change can also refer to any historic change in climate. Scientific understanding of the cause of global warming has been increasing. Climate model projections were summarized in the 2013 Fifth Assessment Report (AR5) by the IPCC. Observed temperature changes Temperature changes vary over the globe. Initial causes of temperature changes (external forcings)
RealClimate.org Ceres Bill McKibben Avoids the Fetal Position [Excerpt] When we talk about global warming, much of the debate centers on separating facts from fluff, and environmental activist and Mother Jones contributor Bill McKibben wants to set the record straight. The Global Warming Reader, a book edited by McKibben and out this month from OR Books, pulls together seminal texts of the climate change debate with the goal of creating a complete picture of what we know about global warming. Selections range from a 19th-century treatise to images from Al Gore's An Inconvenient Truth, and include a few unexpected gems like Senate floor statements from climate change denier James Inhofe (R-Okla.). I spoke to McKibben about his history with climate change literature, his ongoing battle against ExxonMobil, and, in the face of dismal environmental realities, how he avoids the temptation to curl up in a little ball on the floor. Mother Jones: Why'd you put this book together? BM: I do think that there are holes. Read full article
Global Climate Change: Research Explorer- The Exploratorium The earth’s climate has warmed and cooled for millions of years, since long before we appeared on the scene. There’s no doubt that the climate is growing warmer currently; indications of that change are all around us. Though climate change isn’t new, the study of how human activity affects the earth’s climate is. The exploration of climate change encompasses many fields, including physics, chemistry, biology, geology, meteorology, oceanography, and even sociology. At this Web site, you can explore scientific data relating to the atmosphere, the oceans, the areas covered by ice and snow, and the living organisms in all these domains. You’ll also get a sense of how scientists study natural phenomena—how researchers gather evidence, test theories, and come to conclusions.
Climate Action Tracker Project on Climate Change · Yale School of Forestry & Environmental Studies April 09 2014 | Research Reports New Commentary Urges Climate Scientists to “Set the Record Straight” We just published a commentary in Earth’s Future, a new online, open-access journal published by the American Geophysical Union. In the commentary, we argue that the climate science community needs to do more to communicate the scientific consensus because: (a) most Americans don’t know there is a scientific consensus on this point; (b) this lack of awareness undermines people’s engagement in the issue; and (c) research by our team – and others – has shown that simple messages that communicate this basic scientific conclusion are highly effective, especially with political conservatives. We encourage you to download the commentary and join the effort to set the record straight. Continue reading YPCCC Director Advises on Showtime Series About Global Warming Continue reading Climate Change Vulnerability in NW Alaska The Arctic is on the front lines of climate change. Continue reading Topics
Heat Wave At The North Pole Speeds Up The Big Melt From NSIDC/NOAA There was update from the National Snow and Ice Data Center this week regarding the summer melt of Arctic Ocean sea-ice. It’s beginning to look as if a new record low in ice extent is possible by the time the melting ends in early September, passing the all time low set in 2007. Here is the update from NSIDC: Overview of conditionsAs of July 17, 2011, Arctic sea ice extent was 7.56 million square kilometers (2.92 million square miles), 2.24 million square kilometers (865,000 square miles) below the 1979 to 2000 average. Conditions in context Arctic sea ice extent declined rapidly through the first two weeks of July, at a rate averaging nearly 120,000 square kilometers (46,000 square miles) per day. During the first half of July, a high-pressure cell persisted over the northern Beaufort Sea, as it did in June, and is linked to the above-average air temperatures over much of the Arctic Ocean. September sea ice forecasts sent to ARCUS. Maslanik, J., J.
Weather Centre - Climate Change - Evidence Skeptical Science Special Report on Climate Change - New Scientist Environment Cookies on the New Scientist website close Our website uses cookies, which are small text files that are widely used in order to make websites work more effectively. Find out about our cookies and how to change them Log in Your login is case sensitive I have forgotten my password close My New Scientist Look for Science Jobs Climate change A guide for the perplexed There's a lot at stake with global warming, so for those not sure what to believe, we've debunked the most common climate mythsRead more What climate change has done to Walden's woods REVIEW: 20:00 15 April 2014 A hymn to citizen science, Walden Warming by Richard Primack seeks the reality of climate change in the effects that ordinary people have recorded German energy crisis points towards climate solution TODAY: 16:50 14 April 2014 Europe's powerhouse is leading the fight against climate change, but its push for renewables has left it burning ever more coal No option left but to suck CO2 out of air, says IPCC TODAY: 16:47 14 April 2014
200 Years Worth of Temperature Data Compiled in One Alarming Video Berkeley Earth/Video screen capture Last week, we reported on the results of the Berkeley Earth Surface Temperature (BEST) study, and they were, well, convincing. Not only did researchers confirm the accuracy of historical temperature records across the globe, it reinforced its anthropogenic origin. The video above visualizes surface temperature records dating back to 1800, combining around 1.6 billion temperature reports from 15 preexisting data archives. Stop climate change Deeply complex, the climate system drives wind, water, and warmth around our beautiful blue planet, nurturing all life. But now our climate is changing fast. The cause is an old, broken energy system that pollutes our air and water, drives inequality and destroys priceless landscapes. Climate affects all life on Earth Our climate is the engine for life support systems that sustain and nurture us all. The climate is changing fast Sea levels are rising, glaciers are melting, and coral reefs are bleaching. Climate change threatens to unravel Earth's complex web of life, and puts livelihoods, coastal cities and food production at risk. The cause of climate change is certain A dirty energy system, fuelled by coal, oil, gas and nuclear power, has failed us. The polluters profit, while the rest of us pay the price. We must break our remaining ties to this old, lumbering energy system of the past. 100% renewable energy is the key We've already begun to change. Greenpeace fights the polluters
Reddit’s science forum banned climate deniers. Why don’t all newspapers do the same? In addition to my career as a PhD chemist, I am one of a select few who enjoy the privilege of moderating content on reddit.com’s science forum. The science forum is a small part of reddit, but it nonetheless enjoys over 4 million subscribers. By comparison, that’s roughly twice the circulation of The New York Times. The forum, known as /r/science, provides a digital space for discussions about recent, peer-reviewed scientific publications. This puts us (along with /r/AskScience) on the front line of the science-public interface. As a moderator of this discussion, I’ve observed scientific discourse across a wide variety of disciplines. Given that our users are mainly academics (and all are nerds), the discussion generally resembles any scientific debate. Some issues, however, are particularly contentious. Instead of the reasoned and civil conversations that arise in most threads, when it came to climate change the comment sections became a battleground.