Problem: Give your opinion of why these externalities (production externality: Biodiversity loss and greenhouse emission. consumption externality: food waste) arises and propose a realistic (!) and workable solution to the problem. Apply the economic concepts to this setting (eg: price, quantity demand, quantity supply, welfare and impose tax...). Discuss who the key players in solving the issue are, how the solution would work and what impact you would expect on producers, workers, consumers, governments, the environment and other involved parties. using graph to explain if possible.