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 uncertai
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 uncertai
global 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.