MONTPELIER (AP) - Farmers, ski resort executives and others are set to testify to Vermont lawmakers about their concerns over the changing climate.

And then environmentalist and author Bill McKibben will address a joint session of the Legislature on that topic on Wednesday.

The day begins with a joint hearing by the House Agriculture, Commerce and Economic Development and Natural Resources and Energy committees.

The lawmakers will hear from some 25 witnesses on the various impacts the changing climate is having or is feared to have on Vermont.