LaCrosse Tribune: Major decisions on copper-nickel mining, a water quality summit and a push to reduce carbon emissions by Minnesota's utilities will be among the top issues on Minnesota's environmental agenda for 2016. Some of the debate will be very public, while much of the work on issues such as oil pipelines and wild rice will take place behind the scenes, within state agencies that will be conducting environmental reviews and developing regulations. Here's a look ahead: Buffer strips Officials will be working...