Observations
Earth Day 2012: The Best and Worst Pronouncements
April 19th, 2012 |
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April 22 marks the 42nd annual Earth Day observance. In recent years, the week running up to Earth Day has become increasingly filled with a riotous mix of news that ranges from inspired initiatives to thinly veiled partisanship and shameless exploitation. As a journalist who covers energy, environment and sustainability issues, I get many of [...]
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![Figure 1. Plot of the locations of the languages in the sample. Dark circles represent languages with ejectives, clear circles represent those without ejectives. Clusters of languages with ejectives are highlighted with white rectangles. For illustrative purposes only. Inset: Lat-long plot of polygons exceeding 1500 m in elevation. Adapted from Figure 4 in [8]. The six major inhabitable areas of high elevation are highlighted via ellipses: (1) North American cordillera (2) Andes (3) Southern African plateau (4) East African rift (5) Caucasus and Javakheti plateau (6) Tibetan plateau and adjacent regions. doi:10.1371/journal.pone.0065275.g001](http://blogs.scientificamerican.com/anthropology-in-practice/wp-content/blogs.dir/8/files/2013/06/journal.pone_.0065275.g0011.png "journal.pone.0065275.g001")
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