A protester is released a year after taking part in a demonstration attacked by police.
The Tibetan monk was found with recordings by the Dalai Lama.
Water sources are affected as Beijing steps up mining activities to fuel growth.
His sentence had been extended for engaging in political activism while jailed.
News of his release had been concealed for months.
Two monks self-immolate in a challenge to Beijing's rule.
The university had canceled an earlier scheduled talk, fearing offense to China, according to reports.
An annual State Department human rights report also says Burma's authoritarian structure 'remains largely intact.'
The Sydney University's action stems from pressure from China, some groups say.
Others are still missing following a crackdown last year by Chinese security forces.
Experts fear interruptions to water flow and call for greater transparency.
Local Tibetans turn out in large numbers to honor the dead protester.
Two others are released in poor health after serving five-year jail terms.
The activist had demonstrated for Tibetan freedom ahead of the 2008 Beijing Olympics.
Chinese authorities proceed with forced demolitions in spite of protests.
A rights group says he has been released due to his poor health.
They commemorate the anniversary of a riot in Lhasa.