You're probably right, at least about the middle class part. Key Points 54 ...

Let's start with water, that precious liquid that makes life on Earth possible ... could get worse still as the gap between the rich and the poor widens in many parts of the world," Professor ...

If you're looking for concrete evidence of the ever widening gap between America's rich and poor, here's a hint: check your zip code. Now more than ever, American neighborhoods tend to be ...

When did Earth become oxygen rich? O2 accumulation in Earth's atmosphere appears to have started approximately 2,400 years ago, according to a variety of evidence. There was a global warming event 5 ...

Rich or poor, every human being only has a certain amount of bandwidth to tackle life's daily challenges, Shafir says. Take away part of that bandwidth, and that's where we begin to unravel.