Richard Anthes, scientist and president of the University Corporation for Atmospheric Research, will present a free, public lecture on climate change and weather patterns titled “Weather and Climate Change — Why a Few Degrees Matters” 7:30 p.m. Monday, at the National Weather Center, 120 David L. Boren Blvd., on the University of Oklahoma’s Research Campus.

Based on basic physics and chemistry, observations around the world and ever-improving numerical models, the atmosphere and oceans are warming at an unprecedented rate and are projected, even under the most conservative scenarios, to continue rising to a mean global temperature never experienced by human civilization, Anthes says.

Anthes’ talk will review the “knowns” and speculate on the “unknowns” with an argument that the science is incomplete, and that the importance of the problems warrants intensified pursuit of knowledge.

A question-and-answer session will follow the public lecture.

Anthes will also give a technical seminar titled “COSMIC-Accurate and Precise Profiling of the Atmosphere from Space Using Radio Occultation” at 3:30 p.m. Tuesday at the National Weather Center.