On May,22 they even launched a ground attack on Kandahar air field, NATO's sprawling military base outside the city.

VOA: standard.2010.05.26

News of Mr Chavez's resignation caused hundreds of flag-waving and whistle-blowing Venezuelans to surround the city's air force base, La Carlota, in the hope of seeing Mr Chavez' departure from the country.

BBC: Venezuela's new dawn

The Greater Houston Partnership, an alliance of hard-nosed businessmen that looms large locally, has worked well with Bill White, Houston's business-minded but green mayor, to support his clean-up of the city's air and water.

ECONOMIST: Beyond oil

So too are many of the factory chimneys that help turn the city's rarefied air into noxious smog.

ECONOMIST: Mexico