Final answer:
Carbon dioxide (CO2) is largely considered the primary contributor to global warming, accounting for 60% of the effect, due to human activities like burning fossil fuels, deforestation, and agriculture.
Step-by-step explanation:
Current data analysis suggests that carbon dioxide (CO2) is the primary gas responsible for 60% of global warming. This is mainly due to the burning of fossil fuels such as coal, oil, and natural gas, which are used for energy consumption. Additional contributions to CO2 emissions come from deforestation, manufacturing, and agriculture. The vast majority of climate researchers believe humans are causing global warming through these activities. Moreover, temperature changes are influenced by climate feedbacks, including the loss of ice and snow cover that reflects sunlight, the increase in water vapor which is also a potent greenhouse gas, and alterations to land and ocean carbon sinks.