Fighting erupted Aug. 15 between Tuareg militias in northern Mali's Kidal region, breaking the ceasefire and threatening peace talks scheduled to resume this week in neighboring Niger. The clashes at Touzek Oued, southeast of Kidal town, pitted rebels under the banner of the Coordination of Azawad Movements (CMA) against the pro-government Platform coalition, which includes the GATIA militia. GATIA leader Fahad ag-Almahamoud claimed his forces had killed some 20 CMA fighters, including rebel leaders. This was denied by CMA representative Almou ag-Mohamed, who said the Platform forces lost many fighters while his forces had lost two, one of whom was probably captured. He added: "Platform wants to sow disorder." Both sides are blaming each other for starting the clashes. The government said it will establish a 20-kilometer "security zone" around Kidal. The CMA, which has been holding out for greater autonomy over the Tuareg region, has still not confirmed that it will attend the new round of peace talks. (AFP, Reuters, UN News Centre, Aug. 17)

The US Department of Commerce on Aug. 14 agreed to allow limited crude oil trading with Mexico, easing a ban on crude exports that has been in place for 40 years. Members of the US Congress were informed by the Department of Commerce that it plans to approve an application by Petroleos Mexicanos (Pemex), Mexico's state-run oil company, to trade heavy oil pumped in Mexico for light crude pumped in the US. Despite applications from some dozen other countries, which were denied, Canada is the only other nation currently exempt from the ban. Unlike in the agreement with Mexico, Canada is not required to export similar crude quantities to the US. An end to the ban has been called for by both members of Congress and oil producers, including Exxon Mobil Corp.

An Aug. 12 Public Radio International interview with Peter Gleick, president of the Pacific Institute, notes that Iran in 2009 quietly appealed for help from the US in managing a severe water crisis—and suggests that the need for assistance from American hydrologists was the secret lubricants behind the US-Iran nuclear agreement. "The conversation between Iran and the United States over water has extended back more than a decade before 2009," Gleick said. "There have always been contacts at the university level, and at the level of the National Academy of Sciences, between the countries about water efficiency, water conservation, water technologies and how to manage droughts. As the water situation in the Middle East has gotten worse, the interest has gotten higher." Growing usage and an ongoing drought have meant a severe and worsening water crisis for Iran over the past 15 years. Two years ago, a study by the World Resources Institute ranked Iran as the world's 24th most water-stressed nation. (This timeline from The Guardian shows the trajectory of the nuclear talks, which began secretly in early 2013, and were formalized later that year.)

Gunmen killed at least 18 people in outlying districts of Brazil's largest city, Sao Paulo, in a series of overnight attacks Aug. 14. Witnesses and video footage in several locations indicated that masked gunmen pulled up in a car before opening fire. In many cases they checked the victims' names before shooting, or asked if they had criminal records. At least six other people were injured in the attacks, in the districts of Osasco and Barueri. Authorities are said to be investigating whether the attacks were a coordinated campaign of revenge by off-duty officers following the deaths of two colleagues in the targeted districts the previous week. Police in Brazil are responsible for more than 2,000 deaths per year, and off-duty officers rarely face prosecution for vigilante justice. (Reuters, BBC News, Aug. 15)

Workers at La Oroya on Aug. 13 lifted an "indefinite strike" declared two days earlier, and relaxed their blockades of the highway through central Peru's Junín region. The first day of the strike saw one worker killed by a bullet to the chest and some 60 others injured in clashes with the National Police. The decision to "suspend" the strike was taken after union representatives met in Lima with officials from the Environment and Labor ministries, and National Office of Dialogue and Sustainability (ONDS), a new body established to address social conflicts. Officials promised union leaders to try find a way to keep the troubled Oroya Metallurgical Complex open. But deadlines are looming: the workers say they will resume their strike if a solution is not found within eight days. Meanwhile, creditors of complex owner Doe Run say if there are no bidders for the smelters and associated Cobriza mine by Aug. 27, the company will go into liquidation. Peru's government rejected worker demands to ease the legal limit on sulfur dioxide emissions for the complex to allow it to re-open.

Opponents of the disputed Tia Maria mega-mine project organized a dissident contingent at the "Friendship Parade" through the capital of Peru's southern Arequipa region, during festivities marking the 475th anniversary of the city's founding. Farmers from the Tambo Valley, barred by organizers from having a politically themed float in the Aug. 15 parade, marched alongside it, chanting "¡Agro sí, mina no!" (farming yes, mine no!). (Correo, Andina, Aug. 15; Peru this Week, Aug. 12) Protests over the project have resumed since a 60-day state of emergency instated for Islay province in May ran out. Mine opponents are meeting to discuss a region-wide general strike against the project. (Peru This Week, Aug. 10)

National Police troops used tear-gas and armored vehicles against marchers for abortion rights in Lima Aug. 13, who attempted to storm Peru's Congress building. Many of the hundreds of women at the protest were partially naked, with demands for reproductive freedom written on their torsos in red—symbolizing blood. Protesters were pressing for passage of a bill to remove penalties for abortion in the case of rape. A simialr measure was introduced to Congress last year, but failed to pass.

One year after a catastrophic dam breach at the Mount Polley Mine in the interior of British Columbia, the facility has passed the first phase of remediation and resumed operations—with certain restrictions. The August 2014 disaster sent millions of cubic meters of water contaminated with mine waste into the local Hazeltine Creek, which ultimately flows into the Fraser River. Water-use bans were issued for several local towns, and the spill prompted the government to toughen mine permitting requirements. Imperial Metals Corp has completed a "Phase 1" clean-up overseen by the BC Ministry of Environment. The company has supposedly ensured that water entering Quesnel Lake, which Hazeltine Creek flows through on its way to the Fraser, meets provincial quality standards. The provincial government issued the conditional permit allowing the Mount Polley mine to reopen earlier this month. However, the company cannot discharge water until it receives a second conditional permit, likely in the early fall. (Globe & Mail, July 29, 2015; ThinkProgress, Aug. 5, 2014)