Science (from Latin scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.
Science has an important part to play in our everyday existence, and there is far too much neglect of science; but its intention is to supplement not to supplant the familiar outlook.
Arthur Eddington, Science and the Unseen World (1929).
From air quality to solar radiation, information on our atmosphere is of crucial importance to us all. In order to make the right decisions for our current and future quality of life, European decision makers, businesses and citizens need reliable and up-to-date information on exactly what is going on in our atmosphere now and what to expect in the future.