De-carbonization will require in particular a radical transformation of the energy and transportation sectors over the next few decades. Many people find this daunting or fear that it might be not even be possible in such a time-frame. Looking at the history of de-horsification, a similarly radical transformation of the transportation sector in the first half of the 20th century shows that such things are indeed possible, but can be tricky, disruptive and take a long time. At the beginning of the 20th century, the horse was undoubtedly the workhorse of urban transportation for both goods and people, while the new horseless carriages were expensive and unreliable playthings for crazy, rich people. Less than 50 years later the roles are reversed and most horses today likely travel more miles standing in a trailer pulled by a SUV than on their own feet. In 1900, horses were very common - nearly as common per capita as cars are today. New York City counted over 200'000 working horses