Ammonia (NH 3 ) and nitrous oxide (N 2 O) are two important air pollutants that have major impacts on climate change and biodiversity losses. Agriculture represents their largest source and effective mitigation measures of individual gases have been well studied. However, the interactions and trade‐offs between NH 3 and N 2 O emissions remain uncertain. Here, we report the results of a two‐year field experiment in a wheat‐maiz...

389Humans are responsible for nearly seventy thousand wildfires in the US each year, and human-caused fires have burned more than 2 million acres in five of the past ten years. Wildfires are a major contributor to US greenhouse gas emissions, adding 126.4 million metric tons of carbon dioxide into the atmosphere each year. These emissions can be significantly reduced with improved wildfire management strategies. This research...