Please choose the correct answer to the question: Scientists who have studied global climate changes have found that the average temperature of Earth has risen. There has also been an increase in the accumulation of atmospheric greenhouse gases. What is the goal of the scientific community in collecting this type of data?

Answer1: to understand how greenhouse gases are related to global warming Answer2: to decrease the temperature using fossil fuels Answer3: to change public attitude on using natural resources Answer4: to increase the amount of ice in the Arctic

Answer format: answer1/answer2/answer3/answer4