Hallie Kennan

Energy Innovation: Policy

Latest articles by Hallie Kennan

park, city, urban,

Urbanization Can Actually Reduce Greenhouse Gas Emissions (Op-Ed)

By Chris Busch, Hallie Kennan, Technology published

Despite their reputation, cities can produce lower per-person emissions than less-populated regions.

Planet Earth
state green energy banks chart

State 'Green Banks' Helping Fund Clean-Energy Expansion (Op-Ed)

By Hallie Kennan, Technology published

State 'Green Banks' Helping Fund Clean-Energy Expansion (Op-Ed)

Energy
carbon dioxide, pollution, climate change

HFCs? Curbing Them Is Key to Climate-Change Strategy (Op-Ed)

By Hallie Kennan, Technology published

Some refrigerants are more potent greenhouse gasses than carbon dioxide.

Climate Change
weather, tornadoes, Texas fatal tornado

How Do You ... Predict Future Weather? (Op-Ed)

By Sonia Aggarwal, Hallie Kennan, Technology published

How do we predict the weather future?

Weather