‘Where did I go wrong?’ The scientist who tried to raise the climate alarm

Fifty years ago, Australian researcher Graeme Pearman travelled the world with six flasks of air to help prove CO2 in the atmosphere was rising

I often wonder: where did I go wrong?" Graeme Pearman says. Why didn't people respond? Is that my responsibility?"

When Guardian Australia meets him at his home on the outskirts of Melbourne, the veteran climate scientist is frustrated.