Posts

July 26, 2014

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9:59 AM | Temperatures make our global warming opinions change like the weather
Our experience of current warmth can override our scientific knowledge in driving beliefs about climate change, which is part of the reason we struggle to take the resulting risks seriously, underlines Columbia University’s Elke Weber.

Weber, E. (2006). Experience-Based and Description-Based Perceptions of Long-Term Risk: Why Global Warming does not Scare us (Yet), Climatic Change, 77 (1-2) 103-120. DOI: 10.1007/s10584-006-9060-3

Li, Y., Johnson, E. & Zaval, L. (2011). Local Warming: Daily Temperature Change Influences Belief in Global Warming, Psychological Science, 22 (4) 454-459. DOI: 10.1177/0956797611400913

Zaval, L., Keenan, E., Johnson, E. & Weber, E. (2014). How warm days increase belief in global warming, Nature Climate Change, 4 (2) 143-147. DOI: 10.1038/nclimate2093

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July 19, 2014

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11:10 AM | CO2 emissions drive heatwaves on despite warming ‘hiatus’
Direct effects from greenhouse gases are playing a significant role in making hot Northern Hemisphere summers more common even as average temperature increases slow down, find Youichi Kamae from the National Institute for Environmental Studies in Japan and his colleagues.

Kamae, Y., Shiogama, H., Watanabe, M. & Kimoto, M. (2014). Attributing the increase in Northern Hemisphere hot summers since the late 20th century, Geophysical Research Letters, DOI: 10.1002/2014GL061062

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July 12, 2014

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10:50 AM | Could climate’s crop impact catch us with our plants down?
Global warming has sharply increased the odds of serious problems because of declining harvests, find David Lobell from and Claudia Tebaldi from NCAR, and though that situation remains fairly unlikely, they advise countries to prepare for it.

Lobell, D. & Tebaldi, C. (2014). Getting caught with our plants down: the risks of a global crop yield slowdown from climate trends in the next two decades, Environmental Research Letters, 9 (7) 74003. DOI: 10.1088/1748-9326/9/7/074003

Mora, C., Frazier, A., Longman, R., Dacks, R., Walton, M., Tong, E., Sanchez, J., Kaiser, L., Stender, Y., Anderson, J. & Ambrosino, C. (2013). The projected timing of climate departure from recent variability, Nature, 502 (7470) 183-187. DOI: 10.1038/nature12540

Hawkins, E., Anderson, B., Diffenbaugh, N., Mahlstein, I., Betts, R., Hegerl, G., Joshi, M., Knutti, R., McNeall, D., Solomon, S. & Sutton, R. (2014). Uncertainties in the timing of unprecedented climates, Nature, 511 (7507) DOI: 10.1038/nature13523

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July 05, 2014

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11:12 AM | Who can afford to hold back rising seas?
Though using dikes to protect the world from rising sea levels will generally make economic sense, explains Jochen Hinkel from the Global Climate Forum, poor countries may not have the resources to do so.

Hinkel, J., Lincke, D., Vafeidis, A., Perrette, M., Nicholls, R., Tol, R., Marzeion, B., Fettweis, X., Ionescu, C. & Levermann, A. & (2014). Coastal flood damage and adaptation costs under 21st century sea-level rise, Proceedings of the National Academy of Sciences, 111 (9) 3292-3297. DOI: 10.1073/pnas.1222469111

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