As marijuana legalization in states like Colorado and Washington continues, marijuana farmers in Mexico are starting to see a steep decline in the profits their crops once fetched. Some growers report they’re seeing a decline in income as high as 70 percent, and they blame the popularity of higher quality legal marijuana in the U.S.

Number one: Canada elects a marijuana-legalizing prime minister.

The global anti-drug regime has been in place for more than a half century now, but the prohibitionist consensus has been crumbling for at least 20 years, and the decomposition continued apace this year.

The international treaties that make up the legal backbone of international drug prohibition still stand, but they are under increasing attack at the United Nations, which will take them up again next year. They are increasingly being breached (especially by marijuana legalization at the national and sub-national level) and nibbled away at around the edges by moves like drug decriminalization and some harm reduction measures such as supervised injection facilities.

For legalization advocates, 2015 has been a historic year.

Marijuana was pushed further into the mainstream than ever before, and new policies passed at the state level seem to confirm that the public and lawmakers are ready to have a rational conversation about the future of pot in America.

The loosening of marijuana laws across much of the United States has increased competition from growers north of the border, apparently enough to drive down prices paid to Mexican farmers.

Some small-scale Mexican marijuana farmers say a loosening of marijuana laws across the U.S. has increased competition from grows in the states and could put them out of business. The farmers used to earn $100 per kilogram for their illegal crops, but that has fallen to $30 per kilogram in the last four years, the Los Angeles Times reported Wednesday.

"I've always liked this business, producing marijuana," one 50-year-old farmer from the Mexican state of Sinaloa told the LA Times. This season’s crop will be his last, he said.

While a 1986 law allowed for the manufacture, export, sale and medical and scientific use of marijuana, the practice was, until Tuesday, never formally regulated.Current law already allows possession of up to 20 grams of marijuana or cultivation of up to 20marijuana plants for personal use.

Throughout the past year we have no doubt seen groundbreaking strides in the cannabis universe.

Our continued efforts to dismantle the failed experiment of prohibition are full of excitement but also frustration.

But even though we still have a lot of work to do, it is simply awe-inspiring to look back on this year in cannabis.

To celebrate and share our gratitude, here is a month-by-month snapshot of cannabis in 2015. The resulting story arc is a powerful indication that momentum is stronger than ever – cannabis legalization will not be stopped!

When Americans go to the polls in November, they'll be voting for a new president, many crucial Senate races and the future of legalized marijuana. It appears that at least five states, including California, will be voting on whether the pot industry should be regulated like alcohol, with products available to all adults. Several more states, including some of the most reliably conservative, will vote on allowing medical weed.

MEXICO CITY (AP) — Mexico City’s mayor is introducing a national initiative in congress to legalize cannabis-based medical treatments in the entire country.

Mayor Miguel Angel Mancera says the initiative would not legalize production or distribution of medical marijuana in Mexico, rather give Mexicans access to medicinal products manufactured outside the country.

He said Wednesday the initiative is a matter of public health and aimed to allow patients access to proven remedies that are legal in other countries for various illnesses and ailments.

Mancera said if morphine-based medicines are legal, cannabis-based medicines should be as well.

MEXICO CITY – The Mexican government on Friday granted the first permits allowing the cultivation and possession of marijuana for personal use.

The federal medical protection agency said the permits apply only to the four plaintiffs who won a favourable ruling from the Supreme Court last month. The court said growing and consuming marijuana is covered under the right of “free development of personality.”

he permits issued Friday won’t allow smoking marijuana in the presence of children or anyone who hasn’t given consent. The permits also don’t allow the sale or distribution of the drug.