The momentum for climate action we are witnessing is extraordinary. Throughout 2019, millions of people took the streets all around the world to join the youth climate movement's school strike. Yet at this year’s most important climate politics meeting, the UN Climate Action Summit in New York, most governments were far from committing to sufficient action to avert dangerous climate change. Dr. Beatrice Mosello and Dr. Virginie Le Masson explain how to move things forward.

To fight illegal coca plantations and conflict actors’ income sources, Colombia’s president wants to loosen the ban on aerial glyphosate spraying. However, considering the dynamics of organised crime, the use of toxic herbicides will not only fail to achieve its aim, it will have many adverse effects for the environment and human health, fundamentally undermining ways to reach peace in the country. International cooperation and national policy-makers need to account for this peace spoiler.