Five years ago, Google starting measuring the quantity and value of food being tossed at its facilities. It’s still got a long way to go, but it’s an object lesson in how focusing on a problem can bring solutions.
At first glance, the news seems good: tropical deforestation declined for the second year in a row, according to new satellite data. But digging in a little deeper reveals a more complicated, grimmer reality.
The scale of climate change can be difficult to comprehend. Many diverse environmental issues - pollution, warming oceans, and increasing temperatures - are combining to make the future look, well, less bright.
Global warming is having a serious impact on economic growth across the world — and it's worse for poor places that already had a lot of catching up to do, a study by two Stanford University researchers shows.