Climate change, pollution, decreasing biodiversity – the world’s ecosystems are in trouble. In the United States, Arizona, California and Nevada have agreed to take less water from the Colorado River to prevent water levels falling perilously low.
Studies in Western Europe (including the British Isles) suggest 14% of bee species are in decline and 9% are threatened with extinction; for butterflies the numbers are 19% in decline and 9% at threat of extinction.
In New Zealand, more than 4000 of our endemic and native species are at risk of extinction.
How can we continue to grow the food we need, without further threatening our natural ecosystems. What changes are necessary to ensure our food and fibre production systems are environmentally sustainable?