Whale.fm is a project (which you can contribute to!) to help "marine researchers understand what whales are saying." - really it's a project looking at the effects that manmade sound has on marine life, but what whales are communicating with their songs is still a really interesting question, so I've listed some relevant links in extended description. [more inside]
Leaf blowers emit 34 times the hydrocarbons of a typical automobile per hour of operation. Fumes are compounded by noise. Cities from New York to California are banning them. Seems a straight forward issue, but what about time and money?
There's nothing like the husky growl of an automobile engine. Of course to some people its just noise. But what if cars were quiet? That's right .... we'd complain they were too quiet. Then we'd have to fix that.
Noiseways. Listen to New York City and Portland Oregon. "The negative effects of noise—stress and the disruption of work, sleep, learning and other activities—are well established by scientific research. And of course it comes as no surprise that there is a lot of noise in New York City. The Noiseways Project intends to complement this knowledge by letting visitors to this Internet site experience the effects of noise through the use of pictures and sound recordings. Instead of presenting data, Noiseways engages the senses."
Were the Mayans expert sound engineers? Perhaps we could learn something from them to aid our pursuit of technological solutions to modern noise pollution problems.