Special envoy John Kerry said ‘we wasted four years’ under the Trump administration.
‘2008-style systemic collapse’ expected if human-caused CO2 isn’t halved in decade.
IMF sees few signs of a turning point amid ‘new normal’ of higher uncertainty.
Hedge fund honcho thinks current wacky times could be headed for a popping bubble.
A slowdown and trade war won’t derail world’s second-largest economy, they say.