Dr Isla Myers-Smith invites you to her Our Changing World lecture on how global warming is causing Arctic tundra to become more productive with increasing shrubs and other plants. Global climate change has been identified as a serious threat with profound impacts in tundra ecosystems. The tundra biome is responding more rapidly to climate change than any other biome on the planet, according to recent reports from the Intergovernmental Panel on Climate Change. Recent evidence indicates that widespread expansion of shrubs and other vegetation is taking place around the tundra biome - known as the greening of the Arctic.