Choking point: how Australia's bushfires have left its citizens struggling for air

PM2.5 particles make it difficult for people to breathe, particularly those with asthma or other related respiratory issues

Gabrielle Wenman is used to spending her long Australian summer holidays outdoors – swimming, walking and doing anything but being locked up inside.

This summer has been different. To go outside in vast areas of Australia this summer has been to step out into a world with an obscured skyline, a red sun, the inescapable smell of smoke, and heavy air.

Continue reading...