Global Warming

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Tag archives for Global Warming

Denialists are Doomed

It’s been a frigid winter in much of the United States, but Greg Laden notes that the country covers only 1.5% of the Earth’s surface, and overall the planet just experienced the fourth-warmest January on record.  Meanwhile global warming denialists are resorting to every rhetorical trick in the book, such as comparing their increasingly outnumbered…

Solar cells made with bismuth vanadate achieve a surface area of 32 square meters per gram.  This compound can be paired with cheap oxides to split water molecules (and make hydrogen) with record efficiency. Short-term geoengineering could postpone global warming, only to have it happen more quickly in the future. Carotenoids tinge blackbird bills a deep orange,…

Hot Winter Days

The anti-scientific M.O. of some political conservatives was in full swing during the ‘polar vortex,’ as frigid weather brought south from the Arctic led many commentators to scoff, “look how cold it is, can you believe anyone thinks the Earth is getting warmer?” Coby Beck adds some perspective from climate historian Christopher C. Burt on…

The fifth assessment report of the Intergovernmental Panel on Climate Change was released last week, saying that global warming is occurring without a doubt, and human activity is extremely likely to be the cause.  Greg Laden shares a number of graphics from the report, summarizing “It is getting hotter. It is getting wetter, or dryer,…

Life has been growing on Earth for about 4 billion years, and during that time there have been a handful of mass extinctions that have wiped out a large percentage of complex lifeforms.  Asteroid impact, volcanic eruption, climate change, anoxia, and poison have dispatched untold numbers of once-successful species to total oblivion or a few…

Beyond 400 PPM

The threshold of 400 carbon dioxide molecules per million molecules of Earth’s atmosphere is an arbitrary but still significant milestone, reflecting a near 50% increase in the concentration of the greenhouse gas since humanity first started burning fossil fuels for industry. Sure, the Earth has experienced hotter chemistry before, but Peter Gleick says it all…