As a powerful economy, USA must put some efforts to fight climate change.
@Drlatied. your answer is too general, so i am disagreed with that.
Most important related to United States and its ability to counteract carbon footprint in its staple crop farming is to understanding there are two parts of the carbon footprint one that is mostly concentrated on so far is emissions related to farming practices the second which is the big ticket and game changer is soil sequestration. The ability of United States to impact the carbon footprint will reduced farming impacts from practices and reducing emissions is real and significant. For instance much has been done to reduce tillage thereby reducing footprint. There is still much to done with reduced and no till farming option. In terms of practices the use of ammoniated fertilizers in a crop like maize constitutes about one half or slightly more of all carbon footprint. Using the legumes in rotation can eliminate can largely eliminate this important concern. The biggest impacts however are in the area of making United States agriculture a greenhouse gas reducer by promoting practices and systems which sequester major amounts of carbon and nitrogen. Recycling organic amendments conclusively into soil is a major venue and is not used in significant areas. Ideally manures are recycled as mature composts to yield increases in soil sequestration. In addition to compost the use of biochar can yield both a renewable energy resources and soil improvement especially for the southeast quadrant of the used states where soil acid and older. In terms of agriculture systems they need to return to pasture systems which have massive ability to improve soil sequestration and these need to be linked to crop production systems. When animals are produced in the open and crop systems are are rotated with animal production the problems of continuous systems with their contagions are managed and the energy, environment and health concerns are addressed. Because these system optimize the soil condition which all plants and animals depend they are biggest way to reverse our greenhouse gas issues conclusively. Importantly the focus on the role of mixed farming offers increased economic options for farmers. Indeed this effective traditional farming method and system will be needed to retaught to generations of farmers which have been taken in by monocultural farming methods which has not addressed the fundamental issues of greenhouse gases and the issues of soil sustainability, energy concerns and the environment.
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