As promised in our Planet Earth 2 - The Producers episode, this is Planet Earth 2 - The Science.
Is the Earth still warming? What causes the warming? Is climate change real? You know the answers really. It just depends whether you wish to deny them or not. Either way, here's the science.
You can listen to our chat with the producers of the Planet Earth 2 series here
Rich mentions Skeptical Science as a good way of learning about the real science of the climate.