Sentences with phrase «from desertification»

Mediterranean - type ecosystems were not explicitly reviewed in the TAR, but threats from desertification were projected due to expansion of adjacent semi-arid and arid systems under relatively minor warming and drying scenarios.

E.g., human - caused albedo variations from desertification, and to some extent tropical deforestation, were connected with past global climate changes by Sagan et al. (1979); a pioneering model confirming «the long - held idea that the surface vegetation... is an important factor in the Earth's climate» was Shukla and Mintz (1982); Amazon Basin: Salati and Vose (1984); more recently, see Kutzbach et al. (1996).

The values of commitment, persistence and patience, to stay with it until the goal is realized... The love for the land and desire to protect it from desertification and other destructive processes»..........

Cactoceae is a series of photos of cacti that serve as a critique of global warming and the result from the desertification of brazilian landscape.

Global warming caused the melting of the northern polar ice cap, and tropical storms ravage all areas that didn't suffer from desertification.

Land degradation in the drylands, commonly known as desertification, begins with the clearing of vegetation, which means «forests are the first step towards healing the drylands and protecting them from desertification and drought,» as Mr. Luc Gnacadja, Executive Secretary of the United Nations Convention to Combat Desertification (UNCCD) observes.

Withdrawal from the desertification convention suggests that Harper is still in a fit of pique.

But he worries that developing countries may object, as it could draw attention away from desertification in their own lands.

Because of the links between drought, land degradation, desertification and climate change, withdrawal from the Desertification Convention comes with potentially significant costs.

Not exact matches

Recently Canada withdrew from the United Nations Convention to Combat Desertification (UNCCD).

We wish to conclude by urging government to, as a matter of urgency stop all these companies from further logging of the rosewood trees in northern Ghana that is already grabbling with desertification and other climate change impacts.

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.

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.

In 2006, researchers used radiocarbon - dated material from 150 archaeological sites in the eastern Sahara to map a change in settlement patterns that coincided with increased desertification of the region.

New research investigating the transition of the Sahara from a lush, green landscape 10,000 years ago to the arid conditions found today, suggests that humans may have played an active role in its desertification.

To reaffirm the progress made at the summit, more than 80 Ministers from around the world issued the Ordos Declaration urging countries to step up efforts on all fronts to tackle desertification — one of the planet's most pressing global challenges.

Two thirds of the world's poor live in these areas and it is they who are suffering most from the double blow of desertification and climate change as they struggle to eke out a living from the land.

The 2018 World Day to Combat Desertification (# 2018WDCD) urges you to move away from unsustainable land use and make a difference by investing in the future of land under the slogan, «Land has true value — invest in it.»

How many other opposing feed backs are there - albedo from frozen and liquid precipitation, CO2 fertilization and possible desertification from global warming, and the many others.

In September 2011, the United Nations General Assembly High - Level Meeting on «Addressing desertification, land degradation and drought in the context of sustainable development and poverty eradication» brought together political leaders from across the world.

For generations, Vainqueur has suffered from rampantly accelerating desertification that now threatens the subsistence of the entire continent.

On the continent of Vainqueur about a century ago, a mysterious phenomenon called «desertification» began encroaching from the western side of the continent, turning all land it reaches into sand.

Saving the world is to be expected in virtually every RPG, but the idea of desertification and the fighting that arises from scarce resources speaks to timeless issues.

The United Nations Convention to Combat Desertification defines desertification as: land degradation into arid and dry sub-humid areas resulting from various factors, including human activities and climatic variations derived from over-development, over-grazing and an oDesertification defines desertification as: land degradation into arid and dry sub-humid areas resulting from various factors, including human activities and climatic variations derived from over-development, over-grazing and an odesertification as: land degradation into arid and dry sub-humid areas resulting from various factors, including human activities and climatic variations derived from over-development, over-grazing and an overworked land.

In the Sub-Sahara countries, the Desert is moving southwards at an annual rate of 0.6 km., putting 35 million people at risk from the effects of desertification in northern Nigeria alone.

What will be the impact of desertification on sea life, the displaced refugee's as seas rise, failing crops from drought.

Increased global temp may result in: Increased frequency / violence of severe weather Drought / Desertification / loss of biomass Loss of fresh water Increased disease from vector - borne diseases Species extinction on a large scale.

But I hope we remember that this is what animals, plants, forests and oceans experience on a daily basis from the human induced unnatural disasters like deforestation, desalination, desertification, etc..

An atmosphere clouded by super storms of sand from the large increase in desertification, the extra soot in the air from the burning forests, and the crop losses from soil degradation.

They are dying from thirst, hunger and the by - product of desertification.

In addition, there is ~ 1.1 + / - 0.8 PgC / yr NET EMISSIONS from land use change, largely from agriculture, deforestation and / or desertification of land that has had all or part of the vegetation killed.

Updated, 8:10 p.m. President Obama today joined the parade of leaders addressing a United Nations session hailing the adoption of 17 Sustainable Development Goals for 2030, which range from extremely lofty («end poverty in all its forms everywhere») to doable but difficult («sustainably manage forests, combat desertification, halt and reverse land degradation, halt biodiversity loss»).

And by taking a cue from the humble yet noxious tumbleweed, science may be able to gather data about desertification in a unique way.

In many arid parts of the world, desertification is a major issue, and advancing deserts and loss of formerly fertile lands can have a big impact on not just the local environment, but can also affect where and how people live in those areas, many times leading to mass migrations from the country to the cities.

Exploitation of fear about environmental problems kept shifting from ozone depletion, acid rain, desertification, rainforest destruction, global warming, sea level rise, climate change, and climate crisis, among others.

«The Great North American Dust Bowl: A Cautionary Tale,» in Secretariat of the U.N. Convention to Combat Desertification, Global Alarm: Dust and Sandstorms from the World's Drylands (Bangkok: 2002), pp. 77 — 121.

Air pollution, ozone depletion, acid precipitation, global warming, desertification, smog production, and deforestation are but a few of the human impacts on the climate system that arise from the alteration of the mass and energy exchange with the atmosphere.

The IPCC certainly does make predictions that large amounts of land, especially in Latin America (See WG2 Chapter 13, pages 583 and 597) and some other equatorial areas, will be subject to «desertification processes,» and this would be a serious problem, but I have not seen a claim as dramatic as Mr. Romm's proceed from the IPCC process.

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.

She mentions the recent droughts witnessed by France, Canada and successive droughts in the US, and also points out the recent exodus of people from drought and desertification in the global south.

1 Positive 1.1 Carbon cycle feedbacks 1.1.1 Arctic methane release 1.1.1.1 Methane release from melting permafrost peat bogs 1.1.1.2 Methane release from hydrates 1.1.2 Abrupt increases in atmospheric methane 1.1.3 Decomposition 1.1.4 Peat decomposition 1.1.5 Rainforest drying 1.1.6 Forest fires 1.1.7 Desertification 1.1.8 CO2 in the oceans 1.1.9 Modelling results 1.1.9.1 Implications for climate policy 1.2 Cloud feedback 1.3 Gas release 1.4 Ice - albedo feedback 1.5 Water vapor feedback 2 Negative 2.1 Carbon cycle 2.1.1 Le Chatelier's principle 2.1.2 Chemical weathering 2.1.3 Net Primary Productivity 2.2 Lapse rate 2.3 Blackbody radiation

Major Environmental Issues: Soil erosion from overgrazing, industrial development, urbanization, and poor farming practices; soil salinity rising due to the use of poor quality water; desertification; natural habitat of many unique animal and plant species is threatened by clearing for agricultural purposes; the Great Barrier Reef off the northeast coast, the largest coral reef in the world, is threatened by increased shipping and its popularity as a tourist site; limited natural fresh water resources.

Major Environmental Issues: Erosion resulting from inadequate flood controls and improper land use practices; irrigated soil degradation; desertification; air pollution in Buenos Aires and other major cities; water pollution in urban areas; rivers becoming polluted due to increased pesticide and fertilizer use.

The contribution to global dust emission of desertification through human activities is uncertain: estimates vary from 50 % (Tegen et al., 1996; Mahowald et al., 2004) to less than 10 % (Tegen et al., 2004) to insignificant values (Ginoux et al., 2001; Prospero et al., 2002).

(a) Chinese desert distributions from 1960 to 1979 and desert plus desertification areas from 1980 to 1999.

It is a simple discrepancy which must be laid to rest, or there is no way to conclude anything about the system: how were CO2 levels maintained in a tight range over centuries, given all the random influx and egress from volcanic activity, environmental perturbations, deforestation, desertification, fossilization, agricultural trends, wars, oceanic turnover, continental drift, weathering of minerals, fires, floods, etc..., if there is not a fairly strong feedback holding them in place?

But significantly, version 5.0 added historical imagery from around the world, allowing users to track changes in forest cover, urban spawl, and desertification.

New research investigating the transition of the Sahara from a lush, green landscape 10,000 years ago to the arid conditions found today, suggests that humans may have played an active role in its desertification.

Desertification - Land degradation in arid, semi-arid, and dry sub-humid areas resulting from various factors, including climatic variations and human activities.

Further, the United Nations Convention to Combat Desertification (UNCCD) defines land degradation as a reduction or loss in arid, semi-arid, and dry sub-humid areas of the biological or economic productivity and complexity of rain - fed cropland, irrigated cropland, or range, pasture, forest and woodlands resulting from land uses or from a process or combination of processes, including those arising from human activities and habitation patterns, such as: (i) soil erosion caused by wind and / or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long - term loss of natural vegetation.