stock pickers in some of asia’s key markets are being battered by a series of extreme weather events from heat waves to flooding signaling the difficulties ahead as el ninorelated risks rise and climate change accelerates in resourcerich australia newcrest mining ltd’s telfer gold mine was closed earlier this month and the company’s shares fell from more than a twoyear high after the biggest cyclone to hit the western australian coast in almost a decade made landfall that followed heavy rain and flooding that hampered coal production for miners such as whitehaven ltd and bhp group late last year