Mauna Loa Observatory

Mauna Loa Observatory is like a giant nose that smells the air for important gases. Scientists built this "nose" on a big volcano in Hawaii called Mauna Loa. They chose this volcano because it is tall and far away from any pollution. Mauna Loa Observatory helps scientists measure and keep track of the amounts of gases in the air, like carbon dioxide. These gases are important for our planet because too much of them can make the air too warm, which changes the weather and hurts plants and animals. So, scientists use the data from Mauna Loa Observatory to help us take care of our planet!