James Hansen

James E. Hansen heads the NASA Goddard Institute for Space Studies in New York City. He has held this position since 1981. He is also an adjunct professor in the Department of Earth and Environmental Sciences at Columbia University.

After graduate school, Hansen continued his work with radiative transfer models and attempting to understand the Venusian atmosphere. This naturally led to the same computer codes being used to understand the Earth's atmosphere. He used these codes to study the effects that aerosols and trace gases have on the climate. Hansen has also contributed to the further understanding of the Earth's climate through the development and use of global climate models.

Hansen is best known for his research in the field of climatology, his testimony on climate change to congressional committees in 1988 that helped raise broad awareness of global warming, and his advocacy of action to limit the impacts of climate change.

If global temperatures on our planet continue to go up, ferocious super-storms could become more frequent and sea levels could rise several meters over the next century, drowning coastal cities along the way.

That’s the ominous warning put forth in a new, peer-reviewed paper penned by former top NASA scientist Dr. James Hansen and 18 co-authors, which was published in the journal Atmospheric Chemistry & Physics on Tuesday.

The paper builds from controversial research released last year before the study was peer reviewed, a process that gives other scientists an opportunity to critique the work.