Sydney Morning Herald: SYDNEY Airport, the nation’s busiest, sits surrounded almost entirely by waterways. Botany Bay lies on the south, Botany Wetlands to the east, Alexandra Canal to the north, and Cooks River to the west. It is among the most critical and vulnerable pieces of infrastructure at risk from sea-level rise, the latest report on Climate Change Risks to Australia’s Coast finds. A sea-level rise of 1.1 metres, combined with a storm surge, would inundate parts of the northern runways and taxiways …