We are in the midst of the 6th mass extinction event, with extinctions occurring faster than at any time in the last 65 million years. ‘Bioabundance’ is in decline, with recent studies showing that insects in particular seem to be disappearing fast. If it continues, this will have profound consequences for mankind and for our planet. Dave Goulson will explain why insects are decline, and suggest how we should tackle this crisis, first by turning our gardens and urban greenspaces into oases for life, and second by fundamentally changing the way we grow food.