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People around the world recognize the dire threat posed by climate change. Governments, businesses, and individuals are making commitments to shift to renewable energy sources, trim consumption, and otherwise reduce their carbon footprints. But what if these steps are woefully inadequate to ensure the future health-or even the survival-of the human race? What if the most popular goal being pursued by today's climate activists-net zero carbon emissions-is actually a recipe for human disaster? That's the warning being sounded by scientist, engineer, and entrepreneur Peter Fiekowsky . . . along with an urgent call to refocus our rescue efforts on a much bigger, bolder, yet fully achievable goal-the goal of restoring the climate to the healthy state that will allow human beings to thrive. Scientific data show that humans evolved and thrived in a world where atmospheric CO2 levels were below 300 parts per million (ppm). Meeting the goal of net zero emissions will leave us with a dangerous level of about 460 ppm. We need to do much better-to return the world to climate conditions that we know are healthy for humans. As Fiekowsky explains in Climate Restoration, this will require removing a trillion tons of excess CO2 from the atmosphere. The good news is that this task, while enormous and technically challenging, is eminently feasible. Scientists and engineers have developed four major technologies for greenhouse gas removal and storage: Ocean iron fertilization; synthetic limeston