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The candidates’ factual stumbles touched on ISIS, ethanol, climate change and more. Read more»

Obama stretched the facts in his final SOTU on jobs, deficits, health care, military spending and carbon emissions. Read more»

Arizona State scientists are studying CO2 gasses and air-capture technology at the Center for Negative Carbon Emissions.

Scientists at ASU are developing new technology capable of capturing excess carbon dioxide from the atmosphere, a task they believe is paramount to current efforts to reduce emissions. Read more»

The share of energy produced by coal-burning power plants, like the Navajo Generating Station, shown here, would be reduced in favor of natural gas generation and renewable sources over the next 15 years under an EPA plan to reduce carbon emissions.

Arizona will ask federal regulators next week to rethink their June proposal that calls for the state to cut carbon emissions from power plants in half over the next 15 years. Read more» 1

The EPA proposed the first-ever limits on greenhouse gas emissions from existing power plants on Monday. The high-profile announcement marks the second time in less than a year the agency has released far-reaching rules aimed at fulfilling a key pillar of President Obama's sweeping climate plan — to cut carbon pollution from both existing and planned power plants. Read more»