In a visit on Friday to Argonne National Laboratory and in his weekly Saturday address, President Obama reiterated his commitment to addressing climate change and promoting alternative energy and energy efficiency. The president used the Argonne National Laboratory visit to call on Congress to establish a $2 billion trust fund for alternative vehicle research using royalty revenues from existing oil and gas production. He called for further research for advance vehicles that run on electricity, biofuels, fuel cells and natural gas.