From raging wildfires in Portugal to plane traffic being halted in Arizona, record heatwaves that have arrived unusually early this year are causing devastation and disruption, and there are more to come, warns the UN weather agency.
Some people may say that cities disconnect people from nature or sacrifice sustainability at the altar of commerce. But these companies are proving that encouraging sustainable habits can change lives, and turn a profit.
Marks & Spencer has been recognised as one of the most sustainable retailers on the planet, joined by other sustainable enterprises like Unilever and Tesco. Can their joint efforts improve the global ecosystem in which they operate?
As the country's southwestern region comes to grips with the devastating aftermath of recent floods, hope for a more sustainable future rises from the northern regions where a new solar and wind energy farm will soon be built.