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Why did the IPCC choose 2° C as the goal for limiting global warming?
Scientists and policymakers have long agreed that global warming beyond 2° C above the pre-industrial average would pose large and escalating risks to human life as we know it on Earth, and governments have used that number as an organizing principle.
With low-carbon technologies improving so fast, does it sometimes make sense to wait to invest in new infrastructure?
It can make sense to wait for low-carbon technology to improve in efficiency and cost, but to slow climate change we must balance what makes economic sense with what reduces emissions the fastest.
Do we have the technology to go carbon neutral today?
We still need new breakthroughs to decarbonize many parts of our modern economy, especially if we don’t want to drive up the price of energy and goods. But we can make real progress with today’s technology, and invest in good ideas for the next generation of low-carbon solutions.