1) The document discusses global energy trends including renewable energy sources and forecasts for renewable energy capacity additions between 2020 and 2040. 2) It projects that renewable energy capacity will grow substantially in coming decades, reaching 28% of global power capacity by 2020, 50% by 2030, and 76% by 2040. 3) The document references several other reports and studies about energy use and the costs and potential of renewable energy technologies.

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