In this presentation I want to advance four propositions that may be controversial:
• That biodiversity is the planet’s most valuable resource. It is also its most abused and threatened.
• That the biodiversity collapse we are witnessing today—the greatest mass extinction of species for 65 million years—is the most fundamental aspect of the whole environmental crisis.
• That most left environmentalists—including Marxist and socialist environmentalists—have failed to adequately recognise or address it.
• That this represents a serious failing in the overall approach of the left, including the Marxist left, to the environmental crisis.