This overview paper is a culmination of decades of research into climate, chaos, and nonlinear dynamics. It is a voyage of work done since the early 1980s in nonlinear dynamics in climate. As an expected extension, in 2004 networks introduced into atmospheric sciences (Tsonis and Roebber, 2004). Ever since, it is realized that at longer time and space scales climate operates with its major modes interacting with each other, and that rules and randomness co-exist. Here we present an overview of what we have learned so far.