On Wednesday, the Senate Environment and Public Works Committee will consider President-elect Donald J. Trump’s choice of Scott Pruitt, Oklahoma’s attorney general since 2011, to lead the Environmental Protection Agency. Mr. Pruitt spent much of his time in office fighting the Obama administration over the E.P.A.’s actions to regulate air and water pollution and to curb greenhouse gas emissions.

The committee is led by Senator John Barrasso, Republican of Wyoming, an outspoken contrarian on climate change, and includes several Republicans openly hostile to federal action to address it. The Democratic members of the committee include some of the Senate’s strongest supporters of the E.P.A. and most forceful voices for decisive action on climate change.

We asked readers what questions they would ask if they could question Mr. Pruitt. More than 2,000 replied, and their answers largely fell into a few categories. Here is what some of them would like to know.

Climate change and climate science

Many readers seemed familiar with Mr. Pruitt’s statement that the science of climate change is “far from settled.” Most pointed out that an overwhelming majority of climate scientists agree that climate change is happening and is caused by human activity, specifically by the emissions of carbon dioxide and other greenhouse gases, and asked for Mr. Pruitt’s sources for his position.