Sentences with phrase «forced by greenhouse gas emissions»

Not exact matches

Professor Sybren said: «It can be excluded, however, that this hiatus period was solely caused by changes in atmospheric forcing, either due to volcanic eruptions, more aerosols emissions in Asia, or reduced greenhouse gas emissions.

GCAM uses market forces to reach a specified greenhouse gas emission target by allowing global economics to put a price on carbon.

A task force assembled by the American Psychological Association hopes to spur more research on the role of the human mind in shaping the behaviors resulting in rising greenhouse - gas emissions as well as on traits that can impede an effective response to global warming and similar slow - building environmental risks.

Doesn't this suggest that such extreme and exceptional conditions are driven by external forcings like insolation, or indeed greenhouse gas emissions?.

There is one and only one justification for a carbon tax — an attempt to influence the future course of the earth's climate (or, as some people prefer, to mitigate anthropogenic climate change) by trying to force down the emissions of the most abundant human - generated greenhouse gas.

The levy is aimed at forcing coal operators to slash their emissions and stop Germany from falling short of its target to cut greenhouse gases by 40 percent by 2020 compared to 1990 levels.

Unlike the scenarios developed by the IPCC and reported in Nakicenovic et al. (2000), which examined possible global futures and associated greenhouse - related emissions in the absence of measures designed to limit anthropogenic climate change, RCP4.5 is a stabilization scenario and assumes that climate policies, in this instance the introduction of a set of global greenhouse gas emissions prices, are invoked to achieve the goal of limiting emissions and radiative forcing.

As LST closely tracks air temperatures over the instrumental period, we can also infer that air temperatures in this region of East Africa varied in concert with the global average and thus were controlled primarily by the major forcings influencing temperatures over this timescale, both natural (solar radiation, volcanism) and anthropogenic (greenhouse - gas emissions; refs 19, 20).

The change in P * — E * over the next century, as modeled by 23 state - of - the - art climate models forced with continued greenhouse gas emissions throughout the century, is substantial in many regions.

There, as with much of Siberia, temperatures have been forced to rapidly warm by human greenhouse gas emissions.

Climate projection — A projection of the response of the climate system to emission or concentration scenarios of greenhouse gases and aerosols, or radiative forcing scenarios, often based upon simulations by climate models.

(B) is determined by the interagency group to have in force national policies and measures that are capable of producing measurable, reportable, and verifiable greenhouse gas emissions mitigation.

A linear warming trend plus natural cycles can be mistaken for a step function, but physically the global warming is caused by an external radiative forcing (i.e. human greenhouse gas emissions).

The main purpose of the first phase (development of the RCPs) is to provide information on possible development trajectories for the main forcing agents of climate change, consistent with current scenario literature allowing subsequent analysis by both Climate models (CMs) and Integrated Assessment Models (IAMs).1 Climate modelers will use the time series of future concentrations and emissions of greenhouse gases and air pollutants and land - use change from the four RCPs in order to conduct new climate model experiments and produce new climate scenarios as part of the parallel phase.

It is a stabilization scenario in which total radiative forcing is stabilized shortly after 2100, without overshoot, by the application of a range of technologies and strategies for reducing greenhouse gas emissions (Fujino et al. 2006; Hijioka et al. 2008).

JHU's Energy and Climate Change Task Force aims for a 50 percent greenhouse gas emissions reduction by 2025.

Climate models forced by assuming continued emissions of greenhouse gases suggest around 2 - 2.5 deg F (1 - 1.5 deg C) warming by the year 2100, or about 10 % more tropical rainfall.

Over the past several centuries, human greenhouse gas emissions have caused by far the largest radiative forcing (energy imbalance), and thus must be the driver of any observed long - term global warming.

Less than a year after it was adopted, the Paris Agreement on Climate Change came into force on 4 November 2016, following ratification by 55 countries whose economies account for 55 per cent of all global greenhouse gas emissions.

To slow the rate of anthropogenic - induced climate change in the 21st century and to minimize its eventual magnitude, societies will need to manage the climate forcing factors that are directly influenced by human activities, in particular greenhouse gas and aerosol emissions.

But the good news for tropical forests was tempered by developments including Indonesia announcing its intentions to open up more than 2 million hectares of carbon - dense peatlands to old palm development; the collapse in law enforcement in Madagascar, contributing to an explosion of commercial timber (and lemur) harvesting in that country's spectacular rainforest parks; a breakdown at the RSPO meeting over efforts to reduce greenhouse gas emissions from palm oil production; violent conflict in Peru between government security forces and indigenous groups over land rights and resource extraction; massive foreign land acquisitions in the Congo Basin; dodgy REDD dealings in Indonesia and Papua New Guinea; and large - scale expansion of oil palm agriculture in the Amazon.

Quoting (or parroting) the IPCC, EPA argues that it is «extremely unlikely» (less than a 5 % probability) that the warmth of recent decades can be explained without «external forcing» by greenhouse gas emissions.

A senior scientist at the Mauritius Academy of Science and Technology, who is in New Delhi for a meeting of science academies, says that IPCC reports, in general, are «not radical enough» to force real action by national governments to reduce greenhouse gas emissions.

We already know that coal is being phased out, primarily through market forces, but also through federal greenhouse gas emissions limits imposed by President Obama's EPA, for both new power plants (the rules are already in place) and existing power plants (the rules are still being negotiated).

The climate changes have been simulated by seven coupled atmosphere - ocean general circulation models (AOGCMs; see Table 1 of the accompanying report), the greenhouse gas and aerosol forcing being inferred from the SRES emission scenarios A1FI, A2, B1 and B2.

On Thursday, 65 countries representing 83 % of international aviation agreed to cap their greenhouse - gas emissions from international flights at 2020 levels from 2021 onward — in part by forcing airlines to offset emissions above that threshold, and MAYBE by funding programs that save forests and support sustainable agriculture around the world.

SGE deployment increases gradually over time and ends up being deployed at up to a 50 % intensity — that is, it offsets about one - half of the radiative forcing caused by anthropogenic greenhouse gas emissions.

The decadal predictions system, Met Office decadal prediction system: DePreSys, achieves this by starting predictions from observed atmospheric and oceanic conditions, and including projected emissions of greenhouse gases and variations in natural climate forcings (volcanic and solar activity).

> Scientists probably did not adequately convey to the public that their projections for future warming are based on models that account only for the so - called «forced response» in global mean surface temperatures — that is, the change caused by greenhouse - gas emissions.

«Subjecting entities that receive financial backing from taxpayers to NEPA could provide a hook for environmentalists to force greater scrutiny of actions by those entities that increase greenhouse gas emissions, including the underwriting of fossil fuel projects,» reported Carbon Control News (Sep. 26)

Radiative forcing is a way to quantify an energy imbalance imposed on the climate system either externally (e.g., solar energy output or volcanic emissions) or by human activities (e.g., deliberate land modification or emissions of greenhouse gases, aerosols, and their precursors).

and John Warner, R - Va., would create a carbon «cap and trade» system that would force power companies, manufacturers and the transportation industry to cut greenhouse gas emissions by 4 percent below 2005 levels by 2012, and 71 percent by 2050.