Sentences with phrase «trajectories of emissions of greenhouse gases»

There is no mention of geo - engineering, which in other circles is getting more traction these days as a backstop strategy that is essential to assess, given the trajectories of emissions of greenhouse gases.

Not exact matches

A push for oil sands oversight and new climate targets Harper has been a target of environmentalists for most of his tenure — they say he turned Canada into an international pariah by not regulating greenhouse gases from oil and gas, cutting clean energy and climate science programs, withdrawing from the Kyoto Protocol, «muzzling» scientists, pressing aggressively on Keystone XL and fossil fuels, and allowing the country's emissions trajectory to spiral away from targets under the Copenhagen Accord.

On the current trajectory, greenhouse gas emissions from cars, trains, ships and airplanes may become one of the greatest drivers of human - induced climate change, according to a draft of the forthcoming U.N. fifth assessment report on mitigation of climate change.

As a self - proclaimed «climate leader» the UK government has a critical role to play in closing the «emissions gap» — the gap between the current global trajectory of greenhouse gas emissions and the actions necessary to limit warming to 1.5 ˚C and «well below» 2 ˚C (and hence reduce the risks of disaster), they write.

As a self - proclaimed «climate leader» the UK government has a critical role to play in closing the»em issions gap» — the gap between the current global trajectory of greenhouse gas emissions and the actions necessary to limit warming to 1.5?

They discussed the implications of the INDCs for global 2030 emissions of greenhouse gases and future emission trajectories.

This is the difference between countries» pledged commitments to reduce emissions of heat - trapping greenhouse gases after 2020 and scientifically calculated trajectories giving good odds of keeping global warming below the threshold for danger countries pledged to try to avoid in climate talks in 2010 (to «hold the increase in global average temperature below 2 °C above pre-industrial levels»).

It notes the vast scale of the carbon reservoir beneath the tundra in the far north and the centuries of greenhouse gas emissions that could escape on even modest warming trajectories.

Given trajectories for ice loss in the Alps, and for global emissions of heat - trapping greenhouse gases, divine intervention may be worth a try.

After hearing the speeches, and knowing what you do about the trajectory of emissions here and overseas, what's your personal sense of the likelihood the world will see a price on greenhouse gas emissions sufficient to shift choices in energy sources or technologies?

Domestically it would appear that major shifts in the trajectory of greenhouse gas emissions will come as a result of the larger scale development and deployment of lower emitting sources of energy rather than through a climate bill that constrains emissions.

In his recent article in the New York Review of Books (see http://www.nybooks.com/articles/19131) he states ``... we have at most ten years — not ten years to decide to decide upon action, but ten years to alter fundamentally the trajectory of greenhouse gas emissions.»

However, if greenhouse gas emissions continue to increase along current trajectories throughout the 21st century, there is an 80 percent likelihood of a decades - long megadrought in the Southwest and Central Plains between the years 2050 and 2099.

* Pledges for emissions cuts by 2020 that were made by the world's biggest emitters in 2010 don't correspond to the «lowest cost» emissions reduction trajectory and would lead to greenhouse gas concentrations of as much as 650 ppm by 2100.

Long - term strategies create a framework within which the implications of short - to - medium - term decisions that impact both greenhouse gas emission trajectories and development pathways can be coherently planned and adjusted where necessary.

In a recent post, I made the optimistic argument that, despite all the obstacles thrown up by rightwing denialism, the world is on track to reduce CO2 emissions to zero by 2050, on a trajectory that would hold atmospheric concentrations of greenhouse gases below 450 ppm.

First, the complicated models that develop emissions scenarios don't seem to be necessary for forcing the climate models; simply specifying a value of CO2 concentration (with the other greenhouse gases and anthropogenic aerosol) at 2100 along with a simple time trajectory is sufficient to force the climate model.

The paper by Meinshausen et al. (2011b) describes how the IAM's emission projections of long - lived greenhouse gases were harmonized and used for calculating concentration trajectories for these gases.

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.

This puts emissions on a long - term trajectory consistent with stabilizing the concentration of greenhouse gases in the atmosphere at around 650 parts per million CO2 equivalent, suggesting a long - term temperature rise of over 3.5 [degrees Celsius].»

In the experiment, greenhouse gas emissions in the coming century were assumed to follow a trajectory that climate modelers refer to as the A1B scenario, in which global economic growth is rapid and driven by a balanced portfolio of energy sources, including fossil fuels, renewables, and nuclear.

The sources of uncertainty are many, including the trajectory of greenhouse gas emissions in the future, their conversion into atmospheric concentrations, the range of responses of various climate models to a given radiative forcing and the method of constructing high resolution information from global climate model outputs (Pittock, 1995; see Figure 13.2).

Such plans aim to help cities to reduce greenhouse gas emissions and adopt low emission development trajectories, as well as adapt to the impacts of climate change and build local climate resilience.

The Cost of Action Just as there is a rough consensus among climate modelers about the likely trajectory of temperatures if we do not act to cut the emissions of greenhouse gases, there is a rough consensus among economic modelers about the costs of action.

The Golden Rules Case puts CO2 emissions on a long - term trajectory consistent with stabilising the atmospheric concentration of greenhouse - gas emissions at around 650 parts per million, a trajectory consistent with a probable temperature rise of more than 3.5 degrees Celsius (°C) in the long term, well above the widely accepted 2 °C target.

We conclude that greenhouse gas emission trajectories on the low end of the current forecast range are the most likely to be observed over the next 50 years.»

Municipalities can also direct local changes that reduce the trajectory of greenhouse gas (GHG) emissions and create resilient communities that can adapt to the changes caused by climate -LSB-...]