BAKU, Azerbaijan (AP) -- In the sprawling pavilion section of the United Nations climate talks, where countries, nonprofits and tech companies use big, flashy signs to get the attention of the thousands of people walking through, small aqua and purple beverage cans sit conspicuously on a counter at the Singapore display.
Those who approach learn that the cans are beer -- a brand call NEWBrew -- and free for anybody who asks. But there is something not everybody who cracks one open finds out right away, if at all: the beer is made with treated wastewater.