An increase in __________ in the atmosphere leads to increased global temperatures. oxygen argon nitrogen carbon dioxideJake is a newly hired office manager. One of his goals is to address environmental issues, and he immediately establishes the following office policies. Choose the one that is the least effective. Using heating and air conditioning only when people are in the office Following the "recycle, reuse, reduce" philosophy at work and at home Installing new computers to increase productivity Turning off all office machinery at the end of each day