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The impacts of climate change are among the environmental challenges facing Iran that helped spark protests in dozens of cities across the Islamic republic. At least 20 people have died in the uprising, driven by the sudden collapse of financial institutions, low wages and mistrust of national leaders. Rising temperatures are seen by some experts as an underlying condition for the economic hardships that led to the unrest.

The world needs "immediate and substantial" reductions in carbon emissions to avoid huge and irreversible damage to the planet's oceans and fisheries, researchers say. "The oceans are closely tied to human systems, and we're putting communities at high risk," said fisheries researcher Rashid Sumaila

The world's climate negotiators are in Lima this week for talks that it's hoped could yield a new global accord on tackling climate change. The deal between Beijing and Washington has paved the way for meaningful discussions at the global level, participants say. "The prospects are so much better than they've ever been," said former Mexican President Felipe Calderon.

When people picture sand spread across idyllic beaches and endless deserts, they understandably think of it as an infinite resource. But as we discuss in a just-published perspective in the journal Science, over-exploitation of global supplies of sand is damaging the environment, endangering communities, causing shortages and promoting violent conflict.

Though efforts in sustainable fashion production continue to expand and evolve, the beauty industry has been slow to follow, particularly when it comes to fragrance.

JPMorgan Chase is the target of a new environmental push demanding the bank end funding for tar sands drilling, HuffPost has learned. In a new campaign set to be announced Tuesday, the San Francisco-based Rainforest Action Network criticizes the country's largest bank by assets for providing over $3.1 billion to tar sands producers between 2014 and 2016 alone.