I was born the year after Dr Charles Keeling began charting atmospheric carbon dioxide at the Mauna Loa observatory in Hawaii. His "Keeling Curve" is considered one of the most important scientific works of the 20th century.
In the '80s, while I melted the edges of my cheap hiking boots climbing the active volcano Pacaya in Guatemala, Dr James Hansen of Nasa was alerting the White House to the danger to the climate of burning ever-increasing quantities of fossil fuels. I was as ignorant then of global warming as I was of the Guatemalan genocide going on around me.
Now it's not only war but climate change that is killing people. I felt sick when I read of the gravediggers in Pakistan digging trenches in anticipation of mass deaths from the coming summer heatwave. Wildfires in the Mediterranean, California and elsewhere are being described as the worst ever witnessed. "It was raining fire. It was a view out of Dante", was Clark Tulberg's description from his southern California home two months ago.
Last week our Prime Minister took a first-hand look at the devastation wrought by climate change in the Pacific.
I hope to join the Super Grans outside the Petroleum Conference this year. We will make a Gran stand with placards displaying blown-up photos of our grandchildren.
We want our new government to be brave, the way David Lange was.
Dear Prime Minister: Make this moment your generation's nuclear-free moment. Stop new fossil fuel projects. The Super Grans will be there to cheer you on.
■Rosemary Penwarden is a Whanganui-born grandmother, now living near Dunedin