Sentences with phrase «global estimates suggest»

Current best global estimates suggest that forest mortality is outpacing benefits from increased tree productivity due to increased atmospheric CO2 (Allen et al. 2010), signifying an overarching contraction of forest range (Dobrowski et al. 2015).

Not exact matches

Indeed, in the context of the G20 meeting in Sydney, our estimates suggest that cooperative action can increase global output by 2 percent over the next five years.
Other recent estimates suggest that China could see a $ 2.5 trillion GDP increase from gender parity and that the world as a whole could increase global GDP by $ 5.3 trillion by 2025 if it closed the gender gap in economic participation by 25 % over the same period.
The global porn industry is estimated to be worth $ 97 billion (# 63 billion), with recent research suggesting young men now watch an average of 2.5 hours of pornography a week.
Even the most optimistic estimates of the effects of contemporary fossil fuel use suggest that mean global temperature will rise by a minimum of 2 °C before the end of this century and that CO2 emissions will affect climate for tens of thousands of years.
Recent estimates suggest the West Antarctic Ice Sheet alone could contribute 3.3 metres to long - term global sea level rise.
The IPCC suggests that the median estimate of paying for the change would take off 0.06 percent from global economic growth per year, a small part of a predicted minimum 1.6 percent annual growth globally, but still a restraint.
A new estimate of dryland forests suggests that the global forest cover is at least 9 % higher than previously thought.
The IPCC wishes to destroy the world economy and starve the world of energy and food at a cost of $ 76 trillion over the next 40 year's (UN estimate), to keep global temps below 2C, when even their wildly pessimistic and disconfirmed projections (formally known as predictions) now suggest that climate sensitivity could be as low as 1.5 C, without spending a dime.
«Our estimates suggest that, currently, the global established forests which are outside the [tropics] alone can account for the terrestrial carbon sink,» the study found.
One could assume that there was minimal global mean surface temperature change between 1750 and 1850, as some datasets suggest, and compare the 1850 - 2000 temperature change with the full 1750 - 2000 forcing estimate, as in my paper and Otto et al..
University of Rhode Island Estimates of contemporary global air - sea carbon dioxide (CO2) flux (Takahashi et al. 2009; Landschützer et al. 2014) suggest that subtropical western boundary currents (WBCs) and their zonal extensions are key regions of oceanic carbon uptake (Figure 1a).
In that, our results disagree with most previous estimates and suggest that the global inventory of anthropogenic CO2 in the Southern Ocean could be much larger than what is currently believed.»
The global ed - tech market is already estimated to be worth $ 43.27 (# 30) billion, yet the first assessment of digital skills from the Organisation of Economic Cooperation and Development (OECD) suggests that schools have some way to go in fully taking advantage of the potential of technology in the classroom.
The global market for tablet computers is growing faster than earlier estimates suggested, with Android - powered devices gaining on the market - leading iPads, a survey said Wednesday.
The obvious answer (from someone who is indeed receptive to arguments for lower - than - consensus climate sensitivities) is that it was on a par with recent hot years because temperatures at US latitudes of the globe really weren't as much cooler in the 1930s / 1940s (compared to the present) than GISS / Hadley's best estimates (from often sketchy global coverage) suggest.
This is of some concern (hence the recent interest in this topic) since estimates for the global mean temperature during the Eemian suggest that it was only 1 - 2 ºC warmer than the present.
If all of the currently available carbon resources — estimated to be around 10,000 gigatons — were burned, the Antarctic Ice Sheet would melt entirely and trigger a global sea - level rise of more than 50 meters, a new long - term modeling study suggests.
We present the first global analysis of the costs of abating the estimated 76 million tonnes of methane emitted worldwide each year in oil and gas operations, which suggest that 40 - 50 % of these emissions can be mitigated at no net cost, because the value of the captured methane could cover the abatement measures.
If the current proxy - based estimates are in any way reliable, then it suggests that global temperatures vary significantly from century to century.
The main basis for the claim that there has been «unusual» global warming since the late 19th century is that the global temperature estimates constructed from weather station records suggest a warming trend of about 0.8 - 1.0 °C since about 1880.
However, with improving techniques, researchers recently estimated total submarine groundwater (saline and fresh water combined) discharges suggesting a rate 3 to 4 times greater than the observed global river runoff, or a volume equivalent to 331 mm / year (13 inches) of sea level rise.
Since the start of each estimate (usually 1880), they all suggest that global temperatures have been fairly steadily increasing by about 0.8 °C / century.
If the entire West Antarctic Ice Sheet were to disintegrate, estimates suggest it could raise global sea levels by 3.3 to 6 meters.
In separate calculations, I obtain similar results by optimizing the pattern in distinct basins individually and then estimating the pattern in other basins by regression, suggesting that the global, same - sign character of the pattern is not an artifact of the EOF truncation used in the analysis.
The estimated volume of 25 - year - old or younger groundwater suggests global groundwater is currently recharging at a rate that would reduce sea level by 21 mm / year (0.8 inches / year).
Losses could soar to $ 24tn and wreck the global economy in worst case scenario, first economic modelling estimate suggests
It is worth noting in passing that this lack suggests an important global - level policy recommendation, namely, the world's nations should commit to assessing land / ecosystem degradation using standardized methods to enable us to apply a «sustainability factor» to our present eco-Footprint estimates.
This stability in TSI has 2 effects: (i) as you say it makes global average temperatures remarkably stable (but I suggest the temperature stability is principally down to the TSI stability) and (ii) estimating the effect of a TSI forcing on global average temperatures is difficult when you have only a 0.3 % forcing range.
It is therefore erroneous to suggest that the estimate of the global average ocean temperature is given by the instrument accuracy divided by the square root of the number of observations (as you would if the observations were of the same quantity):
«[it is] erroneous to suggest that the estimate of the global average ocean temperature is given by the instrument accuracy divided by the square root of the number of observations (as you would if the observations were of the same quantity).»
When Julio says, «the best studies and the best estimates suggest that something on the order of 15 to 20 percent of global emissions are going to be handled by CCS,» a couple of reports show up in the background.
However, early estimates from the Global Carbon Project (GCP) using preliminary data suggest that this is likely to change in 2017 with global emissions set to grow by around 2 %, albeit with some uncertaiGlobal Carbon Project (GCP) using preliminary data suggest that this is likely to change in 2017 with global emissions set to grow by around 2 %, albeit with some uncertaiglobal emissions set to grow by around 2 %, albeit with some uncertainties.
Research estimates suggest that removing all fossil fuel subsidies would decrease global carbon emissions anywhere between 6.4 — 8.2 per cent by 2050.
At any rate, as we saw earlier, the global temperature estimates that the IPCC use suggest that there was a general global warming over the entire 20th century.
Specifically, the global temperature estimates used by the IPCC did suggest that there had been a 10 - 15 year «pause» in global warming, and the climate models used by the IPCC had not predicted that!
In general, available top ‐ down estimates of costs and potentials suggest that AFOLU mitigation will be an important part of a global cost ‐ effective abatement strategy.
The issue is the time of the year, latitude and type.The Krakatoa problem is well known eg Stenchikov 2006 ie that the models over estimate the global forcing.Hansen suggested that the observations were incorrect, however the Giss model gets the AO sign incorrect and arctic central temps incorrect in scale and time so.This is due to the incorrect heteregenous chemistry at high latitudes eg chapter3 WMO 2003, Ozone assessment 2011.
The implication for policy is that the latest estimates suggest that global warming is unlikely to be a major problem, and that politicians and policy makers need to revisit the assumptions which underlie their policies.
The Intergovernmental Panel on Climate Change (IPCC) estimates global anthropogenic greenhouse gas emissions for 1990 at 39.4 billion tonnes of carbon dioxide equivalent, suggesting that the Nigerian emissions may have represented approximately 0.09 % of the total in terms of CO2 and 0.76 % of the total in terms of methane, using the IPCCs 100 - year global warming potential for methane of 25.
But include methane hydrate deposits being able to be mined, then appears to more total energy in oceanic methane deposit: «Recent estimates constrained by direct sampling suggest the global inventory occupies between 1 × 10 ^ 15 and 3 × 10 ^ 15 m ³ (0.24 to 1.2 million cubic miles).
If — or more likely when — Thwaites and its neighbour, the Pine Island glacier, ultimately lose all their ice, one estimate suggests that could raise global sea levels by about 3.4 m, enough to affect every coastal city on Earth.
These new, spectral, simultaneous remote and in situ observations suggest that the single scattering albedo (ωo) of pure dust at a wavelength of 0.67 µm is predominantly in the range 0.90 to 0.99, with a central global estimate of 0.96.
's 5 W / m2 is even close to accurate, in looking at some calculations I've seen, which show that the difference between the peak solar cycle and the minimum is about.322 W / m2 across the entire planet in terms of irradiance, and this translates into about.2 C in global temp difference on average, then my rough estimate of.1 C in TSI effect in 1998's El Nino versus 2009 - 2010 is an undershoot, but either way it looks like the TSI effect in 1998 is far more than the.01 C that some have suggested would be the level to be even significant.
It acknowledges that global warming will continue as long as humans continue increasing the greenhouse effect, and merely suggests that future warming will be toward the lower, slower end of the IPCC estimates.
OHC: • Different global estimates of sub-surface ocean temperatures have variations at different times and for different periods, suggesting that sub-decadal variability in the temperature and upper heat content (0 to to 700 m) is still poorly characterized in the historical record.
Our estimates suggest that the global mean power at which this potential energy is released by condensation is around one per cent of the global solar power — this is similar to the known stationary dissipative power of general atmospheric circulation.
«The best estimate of global sea level rise even in the last 100 years, suggests that it's going faster and faster,» he says.
We suggest that the resolution of this issue is consistent with our estimate of the approximately +7 m Holsteinian global sea level, and is provided by Raymo & Mitrovica [58], who pointed out the need to make a glacial isostatic adjustment (GIA) correction for post-glacial crustal subsidence at the places where Hearty and others deduced local sea - level change.
For the Late Pleistocene ice ages, estimates of tropical sensitivity are approximately 3 - 4C for a doubling of pCO2, which we suggest represents a minimum value for global sensitivity during the last ~ 500,000 years.
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