The news is full of disturbing reports about global warming, threatened species, and the gradual realization that the way we live -- particularly in developed nations -- will have to change if we want to enjoy a clean and sustainable future.

CNN: 10 first steps to greener living

The homeless people are able to clean and freshen up, enjoy a hot meal, sleep in a clean and comfortable bed and receive a breakfast in the morning before they depart for the day.

BBC: Suffolk night shelter volunteers get 4x4 snow transport

Those who earn nothing can still come to services and enjoy the large air-conditioned hall and a clean bathroom without paying.

ECONOMIST: Brazil