Most of the pictures show a symbol of nature in some way — a tree, a flower or the Earth itself — while all ask either through words or images for people to recycle. “Because recycling is important,” ...

There are many causes of climate change. One example is cutting down trees. This is a problem that some people don’t know about. Carbon dioxide is released from the trunk when it breaks down or gets ...

While recycling campaigns can help limit what heads to the landfill, scientists are now saying that it’s masked the glaring problem of over-production and de-emphasized other waste reduction ...

"Reduce, reuse, recycle." We've heard that for decades - but does it work? This hour, TED speakers reimagine the well-known slogan and reconsider... The future of sustainability: Moving beyond 'reduce ...