Loyola Marymount University (LMU) assistant professor of civil engineering Jeremy Pal served as a contributing author to “Climate Change 2007: The Physical Science Basis,” an assessment report by the Intergovernmental Panel on Climate Change.

The results of the report were published in the June 15th edition of Geophysical Research Letters.

The report defines the scientific uncertainties concerning the extent, impacts and timing of global warming. Many commentators have described it as the most definitive scientific assessment of global warming to date.

Conclusions of the report include a projected 200 to 500 percent increase in the number of dangerously hot days in the Mediterranean Sea area by the end of the 21st century if the current rate of greenhouse gas emissions continues. France, for example, would be subjected to the largest projected increase of high-temperature extremes, according to the report.

“When high temperature extremes increase, it could have significant negative impacts on human health, water resources, agriculture and energy demand,” Pal said.

The report also indicated that a reduction in greenhouse gas emissions could reduce the intensification of dangerously hot days projected in the scenario by up to 50 percent.

Co-authoring the report with Pal were Noah Diffenbaugh of Purdue University, Filippo Giorgi of the International Centre for Theoretical Physics and Xuejie Gao of the National Climate Center in Beijing.

This is the fourth assessment report on climate change published by the Intergovernmental Panel on Climate Change. The panel was established to assess scientific, technical and socio-economic information relevant to the understanding of climate change, its potential impacts and options for adaptation and mitigation.