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Special Report on Renewable Energy Sources and Climate Change Mitigation

•New set of 164 IPCC scenarios available in SRREN considering full mitigation portfolio.
•Long-term stabilization of atmospheric CO2 concentrations below 400ppm achievable in multiple scenarios from multiple models.
•With increasing mitigation ambition, renewable energy plays an increasingly important role in mitigation portfolios across models and significantly increases in scenarios with low GHG stabilization concentrations.
•When competing options are not available or are otherwise constrained, RE deployments tend to be higher.
•Global mitigation costs tend to rise with ambition and unavailability of technologies.
•With unavailability of some technologies (RE, CCS) more ambitious stabilization goals may no longer be reachable