What is the main points of this paragraph? (science) Beef is widely recognized as the most climate-damaging of all foods. A 2017 study by the Natural Resources Defense Council on food consumption in the US calculates that each kilogram of beef produces 26.5 kilograms of CO2 emissions -- the highest among all the foods observed in the study, and five times more than chicken or turkey meat. A kilogram is equal to 2.2 pounds, so 26.5 kilograms of CO2 is equal to 58.4 pounds of CO2.
Animal agriculture is responsible for 14.5% of the world’s greenhouse gas emissions, according to the UN’s Food and Agriculture Organization, making it a significant contributor to climate change. Of those emissions, 65% come from beef and dairy cattle.

Martin is managing a production line in a manufacturing plant in the midwest. martin has a quality and productivity problem in one part of the manufacturing process. he discovers that his workers aren't sure what to do. when he asks why they didn't ask questions, the universal reply is, "we midwesterners don't ask questions, we just do." martin decides to address this problem by offering recognition rewards for anyone who asks the most job-related questions each month that lead to process improvements. unfortunately, martin finds the program doesn't work. when he further questions his workers, he discovers that no one wants to be the first to ask questions. as a group, workers still feel that they should figure it out on their own and not ask questions. martin finds carmen, one of the workers that everyone else admires, and talks her into being the first to ask questions as part of the program. after about a month, several other people begin to submit questions, and soon everyone in the plant is asking questions. refer to case 6.1. martin's plan failed initially because he didn't consider the power of on attitudes.

Who is the speaker in this excerpt from book 13 of homer’s odyssey, and what inference can you make from the tone?

When were criminals first used to create a system to catch other criminals