What are the obstacles for an effective UN role regarding environment?

What are the obstacles for an effective UN role regarding environment?

Our planet and humankind face three unprecedented, mutually reinforcing challenges: climate change, the loss of biodiversity and the overuse of critical natural resources.

What are the biggest challenges affecting the performance of international agencies in fighting for environmental sustainability?

Among several of these environmental challenges are population explosion; loss of biodiversity; climate change; ozone layer depletion; air and water pollution etc.

What are the biggest obstacles to a clean environment?

Some of the key issues are:

• Pollution.
• Global warming.
• Overpopulation.
• Waste disposal.
• Ocean acidification.
• Loss of biodiversity.
• Deforestation.
• Ozone layer depletion.

What are the emerging environmental issues?

Among the more important environ- mental problems facing the global community today are: climate change, depletion of stratospheric ozone, the world wide spread of persistent organic pollutants, loss of biodiversity, and ocean degradation.

What obstacles stand in the way of international cooperation over climate change?

Four barriers to international cooperation are identi- fied: the nature of the climate problem, scientific evidence of anthropogenic climate change, uncertainty about the net benefits of a climate change policy, and disagreement over sharing the burden of the climate change policy.

What are the main threats to the environment in the 21st century?

The most serious environmental problems of the twenty-first century have the potential to alter the course of life on this planet. Global warming, toxic waste, water and air pollution, acid rain, and shrinking energy supplies are frightening challenges that may threaten our future if we do not face up to them.