Penumbra: Interviews/Reports/Opinions

Penumbra is the YCEI Communication Desk’s archive of opinions, reports and interviews. Choose a subject area we have reported on, and a selection of related stories, videos and podcasts will populate the screen.

by Josh Galperin

Handing down its decision in Robinson Township v. Commonwealth, the Pennsylvania Supreme Court put Pennsylvania’s municipalities back in charge of regulating the land use impacts of shale gas development. Whether or not the court’s decision is sound, and whether or not municipal...

by Eric Ellman

Eighteen months ago researchers from Cornell University revealed a model that described conditions for an epidemic of Chikungunya virus in New York City1.   Combining climate data and eco-epidemiological parameters, they assigned a 38% probability of an outbreak given the arrival of a...

by Eric Ellman

When House Bill 1950 became law in Pennsylvania almost two years ago it substantially increased obligations for companies harvesting natural gas from the rich seams of Marcellus Shale that lie beneath much of the eastern part of the state.  Its Article 6 established impact fees and pegged them...

by Eric Ellman

Five years into a prolonged recession the economic benefits of shale gas development are compelling.  American shale gas reserves have buoyed the U.S. economy, reduced reliance on foreign oil and helped reduce greenhouse gas emissions. In 2012 alone shale gas and tight oil put $74BB...

by Eric Ellman

In 1992, William Nordhaus published the first integrated assessment model (IAM) that reconciled investments to stem global warming with their economic consequences.  Using outputs from climate scientists’ models as inputs for economists’ models, it provided a tool...

by Eric Ellman

How the vectors and ecology of infectious disease alter as the globe warms is one of the most poorly understood topics in climate change science, but most important for human health.  Globally, infectious disease accounts for 1/3 of the 52 million people who die each year1...

by Eric Ellman

In August, 2012, Bill McKibben published an essay in Rolling Stone calling for the nation’s universities to divest their oil and gas holdings. Within a year, seven universities agreed to stop purchasing energy stocks and to start a staged sell-off of...

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