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From the shade of an adobe house overlooking Peru's Santa River, Jimmy Melgarejo squints at the dual peaks of Mount Huascar谩n looming against a cloudless sky. 鈥淭he snow keeps getting farther away,鈥� says Melgarejo, a farmer worried about his livelihood. 鈥淚t's moving up, little by little. When the snow disappears, there will be no water.鈥� Throughout the Andes, millions of people voice the same concern as they watch climate change eat away at the mountain chain's icy mantle. But although everyone fears a water shortage, they do not know how quickly it will come or how severe it will be.

Montrealers have long assumed a fair amount of dirty money sloshes through their city鈥檚 politics, but only lately are they learning just how bad things are. This week the mayor had to resign, a mayor of a neighboring town may soon follow him, and taxpayers don鈥檛 know whether to laugh or weep over the revelation of a safe so bulging with cash that a campaign fundraiser needed help shutting the door. [鈥�] Antonia Maioni, a political science professor at Montreal鈥檚 9I制作厂免费, said the investigation was having a powerful effect, positive and negative.

New Brunswick's largest health authority announced this week it will move from a do or do not resuscitate policy to one that gives patients more choices about end-of-life care, as hospital authorities nationwide increasingly push for Canadians to be clear about their wishes well before they're clinging to life. [鈥�] "I'm sure they've got good intentions in doing this, I'm sure they're wanting to be guided by the patient's wishes and I guess best interests," said Margaret Somerville, the founding director of the Centre for Medicine, Ethics and Law at 9I制作厂免费.

Meat production stinks. And I鈥檓 not referring to worries about bacterial contamination; I mean it literally stinks. Here鈥檚 the story. Hold your nose.

Our brains, as much as our bodies, need exercise. And if you build brain muscle, you protect yourself from neurodegenerative diseases 聽- like Alzheimer's. Jens Pruessner, the director of the 9I制作厂免费 Centre for Studies in Aging, puts it like this: dementia is like climbing down a mountain -- it takes longer to reach the bottom if you start at 1,000 feet, than if you start at 100 feet. To help us stay up on that mountain, the centre has launched the PONDER project with the Douglas Mental Health University Institute.

New York Times op-ed columnist Nicholas Kristof

As the presidential candidates debate how to strengthen America, maybe they can learn from rats.

A 9I制作厂免费 neurologist, Michael Meaney, noticed that some of the mother rats he worked with spent a great deal of time licking and grooming their babies. Other rat moms were much less cuddly.

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Montreal's 1,200 public parks could benefit if politicians are open to some private or non-profit participation in upgrading parks and playgrounds, several experts said.

"Why not? It's a version of what we did in the 1970s," Mc-Gill University architecture professor Pieter Sijpkes said.

As a student in the early 1970s, Sijpkes and some friends got donated scraps of wood, metal, plastic and brick, and turned two abandoned CN rail lots in Point St-Charles into playgrounds. He also helped start community gardens in the area.