Average US temperatures have risen dramatically and fast, with recent decades the warmest of the past 1 500 years.
Rising temperatures due to global warming will make it harder for aircraft to take off in coming decades.
"Coal use is dropping globally, with a 5.9% reduction last year."
Of the 186 countries assessed in a recent survey of climate vulnerability, Chad was rated most in peril.
The Knysna fires and storms in the Cape are indicators that the climate is changing. Solutions, which exist, must be implemented.