Over two and a half decades, we have seen the creation of complex carbon markets; the occasional small carbon tax; the replacement of one fossil fuel (coal) with another (gas); various incentives for consumers to buy different kinds of lightbulbs and energy-efficient home appliances; and offers from companies to opt for greener alternatives if we are willing to pay more for them. Yet, only a few countries (most significantly, Germany and China) have made serious enough investments in the renewable sector to see a rollout at anything like the speed required. We are slowly starting to see a
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