Climate: Removing CO2 from the air no longer optional

The burning question going into the Glasgow climate summit is whether major economies can, by 2050, reduce emissions enough to deliver a carbon neutral world in which humanity no longer adds planet-warming gases to the atmosphere.

No longer a last resort: Pulling CO2 from the air

To save the world from the worst ravages of climate change, slashing carbon pollution is no longer enough—CO2 will also need to be sucked out of the atmosphere and buried, a landmark UN report is expected to say on Monday.

Climate engineering: International meeting reveals tensions

At this point, the greatest danger of climate engineering may be how little is known about where countries stand on these potentially planet-altering technologies. Who is moving forward? Who is funding research? And who is ...

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