The "Clean City" law passed last year by the populist mayor, Gilberto Kassab, stripped the Brazilian city of all advertising. So how's it looking now?
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Microscopic polymer waste is everywhere. I still enjoy Ronald Wright's vision of 20th-century humanity laying down a polycarbon layer as a mineable fuel for distant-future earth species.
"Thousands of turtles, birds and other marine animals are killed each year after mistaking the millions of bags in the world's oceans for squid and jellyfish."
Gallery of the graffiti-through-cleaning advertising thing, including some nice flyposter mutilation. It's still graffiti, though.
"This study demonstrates that human activity has a visible and significant impact on cloud cover and, therefore, on climate. It indicates that contrails should be included in climate change scenarios."
Blake Morrison exploring the sewers of London. "But the real enemies are the fast-food outlets. [...] Where a slug of fat is several cubic metres in volume, pressure-jetting isn't enough to clear it - they have to use pick-axes instead."
"British engineers who yesterday unveiled the prototype of the world's first hydrogen-powered motorbike confessed they were considering adding an artificial 'vroom' to the machine as they were worried its silence might be dangerous."
"The huge 3 tonne figure stands 7 metres high and is totally composed of WEEE – from washing machines to mobile phones and electronic toys. This represents the amount of waste that a single person in the UK is likely to produce in a lifetime."
"Scrap metal collectors generally will not comment on how much they collect in a year but fragmented data for 2003 alone indicated that about 20 tons of 'space metals' was collected."
"Just pour in a hot cup of coffee, and the ocean starts to spread across the continent as ice caps melt and water levels rise."
On the market next year. "Once he tried nitric acid, a toxic chemical that gives off red fumes at room temperature. 'I got it making a really cool bubble, but it could've killed somebody,' he recalls. 'It ate through clothes.'"
"Later this year 20 of the birds will take to the skies [each] carrying a GPS receiver, air pollution sensors and a basic cellphone. They will measure levels of pollutants they encounter, and beam back their findings [to] a blog in real time."
"Altai, Russia - Villagers collect scrap from a crashed spacecraft, surrounded by thousands of white butterflies, 2000. Environmentalists fear for the region's future due to toxic rocket fuel."
"In many parts of London, it was impossible at night for pedestrians to find their way, even in familiar districts. In the Isle of Dogs, the visibility was at times nil. The fog there was so thick that people could not see their own feet!"
"It will only take a few tens of thousands of years [before] almost every trace of our present dominance has vanished completely. Alien visitors coming to Earth 100,000 years hence will find no obvious signs that an advanced civilisation ever lived here."
"Police have been handing out forms to salvagers on which they must declare the items taken. The forms will then be sent to the official Receiver of Wreck, who will resolve the question of ownership."
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