Industrial waste gas emissions are an important reason for the increase in greenhouse gases, but there are also a large amount of greenhouse gases coming from underwater. The bottom sediments of water bodies such as lakes, ponds and rivers will produce methane, which mainly emerges from the water surface in the form of bubbles and enters the atmosphere. It has been found that nutrient-rich water sediments will release more methane. Therefore, some experts suggest that in order to reduce greenhouse gas emissions from water bodies, the abuse of chemical fertilizers should be restricted.
The premise of the above argument is that misuse of chemical fertilizers can easily bring too much nutrients to water sediments.