A new study published in Science finds that a critical glacier in the Peruvian Andes has shrunk to its smallest extent nearly since the end of the last Ice Age. Ohio State University glaciologist Lonnie G. Thompson is studying plants that have been recently exposed near Quelccaya Ice Cap, the world's largest tropical ice sheet, located 18,000 feet above sea level (straddling the border of Cuzco and Puno regions). Chemical analysis of plants exposed by melting several years ago showed them to be about 4,700 years old, proving that the ice cap had reached its smallest extent in nearly five millennia. In the new findings, a thousand feet of additional melting has exposed plants that lab analysis shows to be about 6,300 years old. Thompson said this indicates that ice that had accumulated over approximately 1,600 years melted back in no more than 25 years.

Onésimo Rodríguez, a leader in Panama's Ngöbe-Buglé indigenous group, was killed by a group of masked men in Cerro Punta, in western Chiriquí department, the evening of March 22 following a protest against construction of the Barro Blanco hydroelectric dam. Carlos Miranda, another protester who was attacked along with Rodríguez, said the assailants beat both men with metal bars. Miranda lost consciousness but survived; Rodríguez's body was found in a stream the next day. Miranda said he was unable to identify the attackers because it was dark and their faces were covered. Manolo Miranda and other leaders of the April 10 Movement, which organizes protests against the dam, charged that "the ones that mistreated the Ngöbes were disguised police agents."

Authorities in northern China's Inner Mongolia Autonomous Region earlier this month blocked an attempted cross-country march by traditional Mongol herders, with police assaulting hundreds in two incidents. In the first incident, herders from Inner Mongolia’s Durbed (Chinese: Siziwang) banner (county) gathered at Hohhot train station on March 1, intending to march nearly 500 kilometers to Beijing. But police quickly arrived and broke up the gathering, according to the Southern Mongolian Human Rights Information Center (SMHRIC). The following day, troops in a dozen police vehicles descended on Halgait village in Zaruud (Zhalute) banner, breaking up another group that intended to march on Beijing. The herders hoped to arrive in Beijing for the meeting of the National People's Congress where Xi Jinping was installed as president, to protest confiscation of grazing lands.

In the early morning of March 21 some 150 indigenous people and other local residents occupied one of the four construction sites at the giant Belo Monte dam now being built on the Xingu River in the northern Brazilian state of Pará. The action, which brought construction at the Pimental site to a halt, was carried out by members of the Juruna, Xypaia, Kuruaia and Canela indigenous groups and by non-indigenous riverside dwellers, who mostly support themselves by fishing. The protesters were demanding clarification of the boundaries of their territories and also compensation they said had been promised them by Norte Energía, the consortium of private and state-owned companies in charge of the hydroelectric project.

Three campesino leaders from Tarqui village in Ecuador's southern highland province of Azuay began an eight-day jail term in the provincial capital Cuenca on March 21, convicted of having disrupted the local water supply during a May 2010 protest against the Quimsacocha mining project, run by Canadian multinational Iamgold. Residents say the Quimsacocha project (also rendered Kimsacocha) will degrade and deplete local water sources. Ironically, the jail term for the three leaders—Carlos Pérez Guartambel, Efraín Arpi and Federico Guzmán—began on the eve of World Water Day, March 22, when a march on Cuenca had already been planned to demand local water rights and oppose large-scale mining projects. The march, which brought out several hundred, began with a ceremony in support of the jailed leaders at Cuenca's judicial building. "This is called the criminalization of struggle," said Delfín Tenesaca, president of the highland indigenous alliance ECUARUNARI. (El Tiempo, Cuenca, Kaos en La Red, March 22; La Tarde, Cuenca, Ecuavisa, March 21)

Some 80 indigenous Ngöbe-Buglé activists blocked access to the Barro Blanco hydroelectric dam construction site in Panama's western province of Chiriquí for about three hours on March 8. Riot police dispersed the protesters with tear gas, and the next day police agents arrested four Ngöbe-Buglé. Ricardo Miranda, a spokesperson for the April 10 Movement, which opposes construction of the dam, told a March 11 press conference that the police threatened the detainees and beat them with nightsticks. Miranda, who offered photographs of injured detainees as evidence of the beatings, also charged that the police violated the autonomy of the Ngöbe-Buglé territory by making the arrests. Chiriquí police commissioner Luis Navarro denied that the detainees were mistreated.

In the early hours of March 15, a clash broke out as troops from the elite Special Operations Directorate (DINOES) of Peru's National Police force evicted a group of informal miners from their encampment at La Bonita, in northern La Libertad region, leaving two miners dead. As the encampmen of some 500, in Retamas district, Pataz province, was set upon by a force of some 200 police agents, hundreds of other miners from the area converged on the scene to defend their comrades. In addition to the two dead, several were hurt on both sides, and two miners detained. The eviction of the camp had apparently been ordered by a local judge.

As of March 2 the Spanish-Italian electric energy consortium Endesa-Enel was calling for dialogue with indigenous Mapuche communities in Valdivia province in Chile's southern Los Ríos region in an effort to get clearance for the consortium's stalled $781 million hydroelectric project at Lake Neltume. The dialogue offer came in response to reservations that Los Ríos public service agencies expressed about the power company's latest proposal for the plant. Jorge Weke (also spelled "Hueque")—the werkén (spokesperson) for the Koz Koz Parliament in Panguipulli, a municipality that would be affected by the dam—rejected the dialogue offer, saying the company didn't understand the project's significance for the Mapuche.