Former Vice President Al GoreAlbert (Al) Arnold GoreAl Gore: 'This experiment with Trumpism is not going well' Protecting democracy requires action from all of us Poll: Democrat Bredesen leads GOP's Blackburn by 5 points in Tennessee Senate race MORE will testify before a House panel this week on policies to address climate change.

Gore will appear before a subcommittee of the House Energy and Commerce Committee on Friday, testifying with former Virginia Sen. John Warner (R-Va.) in a hearing entitled "Bipartisan Leaders' Views on the ACES Legislation." ACES is the American Clean Energy and Security Act of 2009, legislation including cap-and-trade provisions as well as renewable energy standards and new "smart grid" technology.

Starting Tuesday, the subcommittee will hold four days of hearings on the legislation, proposed by Rep. Henry Waxman (D-Calif.) and Rep. Ed MarkeyEdward (Ed) John MarkeyOvernight Defense: Mattis dismisses talk he may be leaving | Polish president floats 'Fort Trump' | Dem bill would ban low-yield nukes Dems introduce bill to ban low-yield nukes Some employees' personal data revealed in State Department email breach: report MORE (D-Mass.), who chairs the subcommittee.

Meanwhile, the Senate Foreign Relations Committee will hold its own global warming hearing on Wednesday. Sen. John KerryJohn Forbes KerryRubio wants DOJ to find out if Kerry broke law by meeting with Iranians Time for sunshine on Trump-Russia investigation Pompeo doubles down on criticism of Kerry: The Iran deal failed, 'let it go' MORE (D-Mass.) will chair a hearing titled "Global Climate Change: United States Leadership For A New Global Agreement." Witnesses include Todd Stern, Special Envoy for Climate Change at the US State Department, as well as representatives from CARE, the Center for Clean Air Policy, and Siemens.

Mike Soraghan contributed to this report.