From Joan Zealey, Balgownie, New South Wales, Australia
Guy Cox reminds us about concern for the environment in the 1960s (Letters, 3 February). The environmental movement goes back far further than that. The world's first national park, Yellowstone, was proclaimed in 1872, and Australia's Royal National Park followed in 1879.
In the UK, Emily Williamson and Eliza Phillips, both opposed to the slaughter of birds for feathers to adorn women's hats, combined their fledgling organisations in 1891, leading to the Royal Society for the Protection of Birds.
