It is necessary for us to build a net carbon-neutral or even carbon-negative society to counter global warming and related energy security problems. Many possible solutions have been proposed in this regard, however when the goal could be reached via any strategy is not clear yet. Recently, a new report outlined in quantitative detail the range of options, trade-offs, and costs to guide future policies in achieving carbon neutrality by 2045 for California. Through this report we might get a clearer outlook of how a cost-effective, feasible pathway could be built via existing techniques such as CO2 capture and biomass utilization, and what are the remaining challenges in the future. See full story at Advanced Science News.