Scavenging is on the rise in the US and is no longer the exclusive domain of the poor. Felicity Carus reports on San Francisco's attempts to close down this informal sector and its impact on a burgeoning recycling culture
Republican proposals to cut the US Environmental Protection Agency (EPA) budget by almost a third is an attempt by climate deniers to roll back 40 years of progress in cleaning up America’s air, water, industry and transport, according to campaigners
