Gilles Billen, Sorbonne Université Six of our nine planetary boundaries have been crossed– industrial agriculture is the main culprit. That is what a team of scientists under Johan Rockström reported in an article published in September. First, a reminder: planetary boundaries are thresholds of disturbance beyond which our Earth’s system is put on an uncontrollable … Continue reading How industrial agriculture is disturbing the nitrogen cycle and undermining conditions for life on Earth