Sentences with phrase «said desertification»

In a provocative appearance on the video blog Ted Talks, biologist Allan Savory said desertification of the world's grasslands may be releasing more carbon into the atmosphere than burning fossil fuels.

Scientists say the desertification of the mountain grasslands is accelerating climate change.

Not exact matches

The then Agriculture Minister, Dr. Akinwumi Adesina said Fulani herdsmen were facing a lot of pressure with the increase in population and desertification, adding that the increase in criminality had made livestock production a risky business.

«Desertification can occur anywhere except in a desert,» says Uriel Safriel, a desert ecologist at the Hebrew University of Jerusalem, Israel.

In northwest Africa, where what Werz has called an «arc of tension» runs through Nigeria, Niger, Algeria and Morocco, he said the projected massive population growth combined with small - onset changes brought about by climate change — like sea - level rise along the Niger Delta, the loss of hundreds of villages through desertification and the virtual disappearance of Lake Chad — is bad enough.

For instance, satellite imagery could be used to test whether it predicts the collapse of rangelands in the western United States and other places because of invasion of weeds or desertification, he says.

We offer preliminary estimates of the lands unlikely to support new waves of climate refugees due to the residues of war, exhausted natural resources, declining net primary productivity, desertification, urban sprawl, land concentration, «paving the planet» with roads and greenhouse gas storage zones offsetting permafrost melt,» Geisler said.

As climate change alters weather patterns — hastening desertification in some places and sopping others — increases the strength of natural disasters — from cyclones to landslides — and raises sea levels world wide, it will make many areas and livelihoods untenable, say the authors.

The focus is on drylands (that is, not tropical forests), where desertification and population growth pose the biggest threats, says Pritchard.

After the ceremony completed, Savory and his wife, Jody Butterfield, said similar desertification reversal efforts were taking place in Australia, New Zealand, Canada and the northeastern United States.

«Our model can help predict if forests are at risk of desertification or other climate change - related processes and identify what can be done to conserve these systems,» he said.

«It's not a new phenomenon,» Jaffe says, but it has gotten worse with deforestation and desertification caused by poorly managed agriculture.

Any doubts that Canada is an «outlier» on climate change were dispelled this week, say critics, after the Conservative government announced it is withdrawing from a U.N. convention to combat desertification signed by 194 other nations.

Jef Huisman, an aquatic microbiology professor and theoretical ecologist at the University of Amsterdam in the Netherlands, said that the Princeton research shows that recently proposed early - warning signals for the desertification of arid ecosystems can be too simple, and possibly result in projections of future climate change that do not account for the complexity of nature.

Thus, Huisman said, Tarnita and her co-authors showed that vegetation patterns that currently might be interpreted as the onset of desertification could mean the total opposite — that plants are persevering thanks to termite mounds.

The images could allow researchers to track climate change, desertification and deforestation, he says.

Ms. Barbut said the decision puts the Desertification Convention on par with the Climate Change and Biodiversity Conventions, both of which have their own targets.

«There is strong demand for a Rio Conventions Project Preparation Facility to help finance large - scale, transformative projects that can deliver multiple benefits in addressing global challenges and in implementing the Sustainable Development Goals,» said Monique Barbut, Executive Secretary of the Desertification Convention.

A new publication, The Global Land Outlook (GLO), was recently launched at the 13th meeting of the United Nations Convention to Combat Desertification (UNCCD) in Ordos, China.Speaking at the launch, UNCCD Executive Secretary Monique Barbut said how land degradation and drought are global challenges «intimately linked» to food security, migration and employment, among others factors.

An apparent example is his invitation to deliver a speech to Swiss Re during their 150 year anniversary celebration in London in September, in which he is quoted as saying ``... only now due largely to my TED talk on the desertification aspect of the global problem, was the public becoming aware of such hope in a world so short on solutions...».

Mir is said to be working with additional researchers to improve his design to make it smaller, so «swarms» of the Tumbleweeds could be deployed across sand dunes to help create 3D maps of how the wind moves across the dunes, which may lead to ideas on possible solutions for slowing down or reversing the desertification process.

Our net emission may increase,» he said while speaking at a function on the occasion of the «World Day to Combat Desertification».

«I would say that particularly for women, you're absolutely right, they will bear the brunt of looking for the food, looking for the firewood, looking for the place to migrate to when all of the grass is finally gone as the desertification moves south and you have to keep moving your livestock for your crops are no longer growing, they're burning up in the intense heat that we're now seeing reported across North Africa, into the Middle East, and into India.»

In fact, they not only suffer from the consequences of drought or desertification, but also from the fact that in most cases women do not have rights to land,» she says, before sharing some experiences from Africa where plots of degraded land were restored, but because women did not have rights to the land, they could not stake their claim.

For example, in the drylands of Africa, where desertification is happening, we are seeing food riots and then we are seeing Al Qaeda,» she says, pointing to a study published by UNCCD that explores these links.

Slow onset events are mentioned in the Cancun Agreements with a footnote saying that these are events «including sea level rise, increasing temperatures, glacial retreat and related impacts, salinization, land and forest degradation, loss of biodiversity, and desertification».

Accelerating environmental change — sea - level rise in Bangladesh, say, or desertification in China — could exacerbate rising population pressures in a vicious feedback loop.

An expert of United Nations Convention to Combat Desertification said that the green roof has a good many practical strongpoints, like strengthening the buildings» anti-mechanocaloric effect ability, releasing the effect of acute temperature change in winter and summer, absorbing and minishing urban noise, as well as creating new eco-environment for the species of animals and plants in cities.

Once fires caused by these droughts and continued deforestation have reduced the Amazon's size by half, says Sampaio, desertification will slowly transform the terrain into a «tropical savanna».

«There is strong demand for a Rio Conventions Project Preparation Facility to help finance large - scale, transformative projects that deliver multiple benefits in addressing global challenges and achieving the Sustainable Development Goals,» said Monique Barbut, Executive Secretary of the Desertification Convention.

Among the areas of study will be migrations forced by «slow moving catastrophes,» says Dr. Bogardi, including desertification, diminishing safe water supplies and climate change - induced sea level rise.

Experts at the conference hosted by the Royal United Services Institute said it was likely that global warming would create huge flows of refugees as people tried to escape areas swamped by rising sea levels or rendered uninhabitable by desertification.