The Bosco Verticale (Vertical Forest) will be the greenest building in Milan when completed, which is one of Europe's most polluted cities.
The inside story of how the government let one company squash biotech innovation, and dominate an entire industry
Here is the gallery of the top places to visit before you die - Part II. Enjoy.
New Delhi adds 1,400 poorly regulated new cars to its roads every day, so it's no wonder that the city is choking on auto exhaust. Asian air pollution kills 2 million people every year. Tough emissions laws in the U.S. explain why we're breathing bet...