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B. The Program for Climate Model Diagnosis and Intercomparison

Narrator: This is Science Today. The Program for Climate Model Diagnosis and Intercomparison was established at the Lawrence Livermore National Laboratory in 1989. Its mission is to develop better methods and tools for the diagnosis and intercomparison of general circulation models that affect the global climate. Peter Gleckler is an atmospheric scientist at the Lab.

Gleckler: Here at Livermore , we are not designing these models; we're actually studying the results from other institutions. These models run on the most complex, biggest, fastest computers around and spill out amazing amount of data that we study and compare with observations. So, they are capturing many realistic things that we see in the climate. And much of what we do here is to evaluate the credibility of these models, but comparing them with observations and gaining confidence for what they're telling us about the future climate or even the past climate.

Narrator: Gleckler recently tested the effects of past volcanic eruptions on recent climate models. For Science Today, I'm Larissa Branin.