English debate, what farmers want, signs of life in space, and more

It’s debate night – again. The major party leaders will directly face off with each other for the last time before election day. With just over a week to go, there’s a lot on the line for each of them.One cohort that may be watching closely: farmers. We have a story about what farmers in northern Alberta want to hear before they cast their votes.And: Saskatoon is facing a crisis of opioid overdose deaths. Experts say the supply has gotten more toxic, and some days emergency crews respond to an average of one overdose per hour. And libraries were closed because so many people were taking drugs there.Also: Could there be life on another planet? Scientists have found the strongest evidence yet – chemical fingerprints that could be produced by a life form. And in another study, a researcher at the University of Calgary finds evidence that suggests Mars once had a carbon cycle – support for the idea the red planet may once have been able to support life.Plus: Trump talks to Italy’s prime minister, Canadian schools decide not to travel to the U.S., and more.