Before man-made climate change kicked in -- and well before “Day Zero” in Cape Town, where taps may run dry in early May -- the global water crisis was upon us.
Freshwater resources were already badly stressed before heat-trapping carbon emissions from fossil fuels began to warm Earth’s surface and affect rainfall.
Political apathy over the poisonous smog choking India's capital has led many like businessman Kamal Meattle to take matters into their own hands, with an office building he says pumps air as fresh as from the Swiss Alps.
An off-the-beaten-path corner of Paraguay has become a tourist attraction this month as visitors flock to see a rare delight floating on a hidden lagoon: giant round water lilies spanning over 1.5 meters (five feet).
The Tasmanian tiger was doomed long before humans began hunting the enigmatic marsupial, scientists say, with DNA sequencing showing it was in poor genetic health for thousands of years before its extinction.