China recently witnessed the strongest regional heatwaves since 1961 when the country first started keeping complete meteorological records. Europe also suffers from heatwaves and the worst drought in 500 years. What's behind the high temperatures? What does the summer's worldwide extreme heat tell us about the global climate? (14:02) Indian Prime Minister Narendra Modi has pledged to raise millions out of poverty and transform India into a developed country in the next 25 years, for the nation to celebrate its 100 years of independence from British rule. How realistic is the goal? What challenges and opportunities lie ahead?