Welcome back student climatologists! Yesterday, you analyzed graphs and confirmed that ice on Earth is decreasing, while temperature is increasing! But what could be causing ice to melt and temperatures to increase on Earth? Today we will explore the new Earth’s Changing Climate Simulation, a tool you will use starting today and for the rest of this unit to investigate the relationships between our atmosphere, energy within the Earth system and temperature! When we refer to the Earth system, we mean Earth's atmosphere.