Sentences with phrase «of global land»

In fact, the International Union for the Conservation of Nature study four years ago, predicted that 25 % of global land mammals faced being wiped out.

«The Greenland and Antarctic ice sheets cover around 10 % of the global land surface,» said Jon Hawkings, of the University of Bristol, UK.

It's also worth noting that Muller himself has been careful not to pronounce on AGW, only the validity of the global land temperature record.

Diverse studies of global land cover and potential productivity suggest that anywhere from 600 million to more than 7 billion additional acres of underutilized rural lands are available for expanding rain - fed crop production around the world, after excluding the 4 billion acres of cropland currently in use, as well as the world's supply of closed forests, nature reserves, and urban lands.

Under a high emission scenario, the projections show that by 2100, 3 - sigma heat waves will cover 85 per cent of the global land area and five - sigma heat waves will cover around 60 per cent of global land.

S. Fritz and Linda See, «Identifying and Quantifying Uncertainty and Spatial Disagreement in the Comparison of Global Land Cover for Different Applications,» Global Change Biology 14 (2008): 1057 — 1075.

Meanwhile, more - severe summer heat waves — classified as five - sigma events — will go from being essentially absent in the present day to covering around three per cent of the global land surface by 2040.

Around 11 % of global land surface is currently protected in this way.

Such rainfall regimes cover nearly half of the global land, where either a gradual climate change across the ecosystem thresholds or a strong perturbation due to either extreme climate events, land use, or diseases could trigger abrupt ecosystem changes.

Using a Monte Carlo approach (Arguez et al, 2013), NCDC considered the known uncertainty of the global land and ocean annual temperature in the 2014 annual ranking.

There is another paper which provides an independent confirmation of global land warming w / o using any measurements from meteorological stations.

The Brazilian portion of the Amazon comprises 4 × 106 km2, 12 less than 1 percent of global land area, but disproportionally important in terms of aboveground terrestrial biomass (15 percent of global terrestrial photosynthesis [Field et al., 1998]-RRB- and number of species (~ 25 percent, Dirzo and Raven, 2003).

We can conclude that a significant proportion of the global land area was increasingly affected by a significant change in climatic extremes during the second half of the 20th century.

«The 2015 paper was essentially NOAA releasing a new version of their global land ocean record,» says Zeke Hausfather, a graduate student at UC Berkeley and lead author of the new Science Advances paper.

Permafrost underlies as much as 25 % of the global land surface.

The statement, «This fits within the context of a long - term warming trend both here and around the globe,» Crouch said is still misleading or plain wrong as the trend of US and Canadian annual temperatures has been declining for nearly two decades (17 years) or since 1998, North America which is cooling, not warming represents 16 % of global land areas

I have found that this same relationship applies when the first difference of the global land trends are correlated to the land trend minus the ocean SST trend.

The percentage of global land area hit by drought doubled between the 1970s and the early years of this century.

Figure 2.4 (Folland et al., 2001) shows simulations of global land - surface air temperature anomalies in model runs forced with SST, with and without bias adjustments to the SST data before 1942.

These adjustments, however they are made, tend to slightly increase the warming trends of global land temperatures compared to the raw data.

At 300 m resolution, GlobCover Land Cover v2 provides high resolution imagery of global land cover.

Based on newly available data this report sheds lights on Europe's role as a major user of global land resources.

But the longest data series of annual figures available from the United Nations» Food and Agriculture Organization shows that global forest cover has in fact increased, to 30.89 percent in 1994 from 30.04 percent of global land cover in 1950.

The study was a collaboration between three teams who have independently devised economic models of global land use.

«By 2025, drylands may occupy 48 % of the global land surface and sustain 51 % of the global population growth from 2000 to 2025 − 50 % of which will occur in developing countries, compared with only 1 % in developed countries.»

For example, at 4 °C of global land surface warming (510 — 758 ppm of CO2), vegetation carbon increases by 52 — 477 Pg C (224 Pg C mean), mainly due to CO2 fertilization of photosynthesis.

UNEP Publications: This report explores how the management of land - based biomass production and consumption can be developed towards a higher degree of sustainability across different scales: from the sustainable management of soils on the field to the sustainable management of global land use as a whole.

Ariane de Bremond, executive officer, International Programme Office of the Global Land Programme

The global percentage of dry areas has increased by about 1.74 % (of global land area) per decade from 1950 to 2008.»

They applied this model to a variety of regions around the world (40 % of the global land area) during the season of greatest precipitation.

The European Union uses more than its fair share of global land, with high environmental and social impacts.

With permafrost covering 25 % of global land area, massive stocks of un-rotted biomass are starting to unfreeze each summer and their resulting decay releases both CO2 and CH4.

Climate data from developing countries is scarce, that's 90 % (at least) of the global land area.

First, the project defined the detailed specifications of a global land cover product matching the GCOS requirements (both for itself and as a surrogate for other important climate variables), achievable on a regular basis using the current EO systems and building on the FAO / UNEP LCCS for the sake of compatibility with other land cover products.

In this case, the land use was first downscaled to the 0.5 ° harmonization grid, following the algorithms of the global land - use model (GLM)(Hurtt et al. 2006), preserving GCAM regional land use area totals and generating smooth spatial patterns in the transition from historical to future states.

30 - 40 % of the global land surface, that's huge, and it contains a lot of carbon.

Our work indicates that analysis of global land temperature trends is robust to a range of station selections and to the use of adjusted or unadjusted data.

Regarding Judith Curry, there is broad general agreement that the results released today give a new and improved estimate of the global land temperature going back 250 years.

For those not familiar with it, the purpose of Berkeley Earth was to create a new, independent compilation and assessment of global land surface temperature trends using new statistical methods and a wider range of source data.

The $ 2 billion for Earth science includes vital projects like sustaining the 43 - year Landsat record of global land - imaging measurements.

Globally, extremely warm nights that used to come once in 20 years now occur every 10 years.12 And extremely hot summers, those more than three standard deviations above the historic average, are now observed in about 10 % of the global land area, compared to 0.1 - 0.2 % for the period 1951 - 1980.13

He also leads the institute's Global Landscapes Initiative, which focuses on the nexus of global land use, agriculture, food security and environment.

Warmer than average temperatures were evident over most of the global land surfaces, except for parts of the United States and western Europe, northern Siberia, parts of eastern Asia and much of central Australia stretching north.

University of Montana Professor John Kimball is among the team of researchers who published an article on Oct. 30 about their study on Nature magazine's website titled «Vegetation Greening and Climate Change Promote Multidecadal Rises of Global Land Evapotranspiration.»

Image: Jesse Allen / NASA (using SRTM data courtesy of Global Land Cover Facility / U.

That size cutoff is standard practice,» says Bruce Raup of the University of Colorado in Boulder, who is also director of the Global Land Ice Measurements from Space project, an international glacier monitoring project.

Warmer than average temperatures were evident over most of the global land surface, except for parts of western Europe, northern Siberia, parts of eastern Asia and much of central Australia stretching north.

The model has already been integrated into the next generation of the global land model used for climate simulations by the NOAA Geophysical Fluid Dynamics Laboratory, a major national climate modeling center.

In 2010, for example, one - fifth of the global land area experienced extreme maximum temperature anomalies that coincided with heat waves and droughts in Canada, the United States, Northern Europe, Russia, Kazakhstan, Mongolia and China and unprecedented droughts in tropical rainforests.

Kargel is the international coordinator of Global Land Ice Measurements From Space, a satellite program dedicated to photographing each glacier on Earth every year.