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POLL: Are Humans Causing Global Warming?

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A saguaro cactus at sunset. (Image credit: stockxpert)

A new study concludes Arctic air temperatures in the 1990s were the warmest in the last 2,000 years and were a result of rising greenhouse gas levels. Let us know what you think about the evidence to date by voting and commenting below. Also click here for more news and information about global warming.

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Live Science Staff
Live Science Staff
For the science geek in everyone, Live Science offers a fascinating window into the natural and technological world, delivering comprehensive and compelling news and analysis on everything from dinosaur discoveries, archaeological finds and amazing animals to health, innovation and wearable technology. We aim to empower and inspire our readers with the tools needed to understand the world and appreciate its everyday awe.