Unabated climate change would pose serious threats for human well-being. The Paris Agreement concluded in 2015 aims to stabilize the global mean temperature at “well below 2°C” and to aim for stabilization at 1.5 °C by the year 2100. Reaching these climate targets requires swift decarbonization of the global economy to reach net-zero carbon emissions by 2050 and removing greenhouse gases from the atmosphere in the second half of the century. Due to the fact that greenhouse gas emissions keep rising, some commentators have argued that efforts to address climate change have failed and that it is now too late to prevent catastrophic climate impacts. The aim of this book is to demonstrate that the narrative of climate doom is misleading. It presents 30 examples of social, political, and technological change where encouraging progress has been made in the past years.