A Song of Ice and Fire has been solidified as a defining work of fiction over the past 30 years. George R.R. Martin’s fantasy book saga ascended into the zeitgeist through an ongoing series of ...

Six years after the financial industry pledged to use trillions to fight climate change and reshape finance, its efforts have largely collapsed. By David Gelles Over two decades after negotiations ...

A differential equation is an equality constraining a mathematical function in relation to its derivatives over one or multiple variables. Such equations may constitute the mathematical model for a ...