Sentences with phrase «planetary boundaries for»

Our current method for extracting higher yields from land involves aggressive use of chemical fertilizers and pesticides, which have already pushed us well over the planetary boundaries for biogeochemical flows.

Such a reframing could be a step toward a clearer strategy for keeping within our planetary boundaries for the sake of both humanity and nature.

Scientists propose a list of planetary boundaries for human impacts ranging from biodiversity loss to the global nitrogen cycle

I've yet to see anybody seriously or credibly claiming that we have transgressed some sort of planetary boundary for radiological pollution.

S. R. Carpenter and E. M. Bennett, «Reconsideration of the Planetary Boundary for Phosphorus,» Environmental Research Letters, DOI: 10.1088 / 1748-9326/6 / 1 / 014009 (2011).

Since the planetary boundary for biogeochemical flows is represented by two separate indicators (nitrogen and phosphorus), seven biophysical indicators are considered in total (Table 1).

Actually, it is astonishing to me that Victor cites the planetary boundaries research in his defense, when the central conclusion of that work from a self - described «group of 28 internationally renowned scientists» is that we are already past the planetary boundary for climate!

Not exact matches

Although the 2009 study's authors also noted no thresholds exist for some of their planetary boundaries they proposed limits on land - use change, freshwater, nutrients and biodiversity based on two criteria.

Other scientists have criticized the planetary boundaries as too generous (for example, allowing too much human appropriation of freshwater flows) or employing the wrong metric (atmospheric concentrations of CO2 rather than cumulative emissions of greenhouse gases).

The planetary boundaries expert group suggests a focus on abandoned cropland in Europe and North America, together with land in the former Soviet Union and «some areas of Africa's savannas and South America's Cerrado» for this unavoidable increase in cultivated area.

«The planetary boundaries framework is not a useful guide for policy or environmental management in any concrete sense, as it does not capture the challenges involved in most of the environmental problems it lists,» argues geographer Linus Blomqvist, policy associate at the institute's Conservation Program and co-author of the review.

Estimates of future land take for biofuels production range up to well over a billion hectares globally, more than double the 400 million hectares that remain if we are to respect the proposed planetary boundary.

One bid for preservation initiated in 2009 by 29 scientists from around the world focused on the concept of planetary boundaries.

And «critical transitions» or «tipping points» as suggested by the planetary boundaries concept may not exist for many of the cases because those shifts, if they exist, have already happened.

The planetary boundaries framework defines a safe operating space for humanity based on the intrinsic biophysical processes that regulate the stability of the Earth system.

Integrated assessment models create scenarios for the most cost - effective transition toward a sustainable supply of materials and energy while taking the planetary boundaries into consideration.

The loss is due to changes in land use and puts levels of biodiversity beyond the «safe limit» recently proposed by the planetary boundaries — an international framework that defines a safe operating space for humanity.

He is an internationally recognized scientist on global sustainability issues, where he, e.g., led the recent development of the new Planetary Boundaries framework for human development in the current era of rapid global change.

Over 10 hours, a host of views were expressed, ranging from a hopeful picture of demographic trends from Gérard - François Dumont of the University of Paris to an urgent call for action to avoid crossing dangerous planetary boundaries from Jeffrey D. Sachs of Columbia University's Earth Institute.

To me it is astonishing that both of these posts seem to take us to task for not being aware of the «planetary boundaries» research (more on that below) when the central conclusion from that work is that real boundaries need to be set in multiple dimensions — exactly what we argue.

You can get a feel for his work and views in the video above in which he explains 2009 research on «planetary boundaries.»

So for the policy - relevant issues, we generally focus on the physical atmosphere - ocean system, sometimes with coupled carbon - vegetation system, and treat the major ice sheets, orbital parameters and planetary topography as fixed boundary conditions.

Steffen et al (2015) revise the «planetary boundaries framework» initially proposed in 2009 as the «safe limits» for human alteration of Earth processes (Rockstrom et al 2009).

In 2012, the boundaries work helped produce a compelling alternative framework for navigating the Anthropocene — «Planetary Opportunities: A Social Contract for Global Change Science to Contribute to a Sustainable Future.»

The coming SDG (Sustainable Development Goals) framework includes a proposed set of four goals (oceans, climate, biodiversity and freshwater), which is a de-facto example of applying planetary boundary thinking to create a global framework for safeguarding a stable environment on the planet for societies and communities across the world.

This ought to be reassuring for Ellis et al. who portray implementation of Planetary Boundary thinking as a dark force of planetPlanetary Boundary thinking as a dark force of planetaryplanetary rule.

A diagram from a paper defining «planetary boundaries» for human activities shows areas of greatest risk in red.

(1) We have never argued that there are planetary scale tipping points for all Planetary Boundary pplanetary scale tipping points for all Planetary Boundary pPlanetary Boundary processes.

(2) Establishing the Planetary Boundaries, i.e. identifying Earth System scale boundaries for environmental processes that regulate the stability of the planet, does not (of course) contradict or replace the need for local action, transparency and democratic Boundaries, i.e. identifying Earth System scale boundaries for environmental processes that regulate the stability of the planet, does not (of course) contradict or replace the need for local action, transparency and democratic boundaries for environmental processes that regulate the stability of the planet, does not (of course) contradict or replace the need for local action, transparency and democratic processes.

6:57 p.m. Addendum For relevant work with somewhat different conclusions review the presentations from «Intensifying agriculture within planetary boundaries,» a session at the Planet Under Pressure conference in London last March.

Hansen, and more recently the authors of a bracing new paper on «planetary boundaries», have made a compelling case that 350 ppm is a threshold that we don't want to exceed for long.

On the eve of this year's World Economic Forum in Davos, Switzerland, a team of scientists led by Will Steffen of the Stockholm Resilience Centre at Stockholm University and the Australian National University report in the journal Science that the world has now crossed four of nine planetary boundaries within which humans could have hoped for a safe operating space.

A joint program between EAT and WBCSD, Food Reform for Sustainability and Health (FReSH) is designed to accelerate transformational change in global food systems, to reach healthy, enjoyable diets for all, that are produced responsibly within planetary boundaries.

This guidance document provides an overview on: the evolving contribution of business to the sustainable development debate; planetary boundaries, environmental challenges and their implications for business; the greening of enterprises and workplaces, and; the role that business and employers» organizations can play in lobbying and service development in the environmental field.

After accounting for errors associated with transport, planetary boundary layer height, lateral boundary conditions, seasonality of emissions, and the spatial resolution of surface emission prior estimates, we find that the California Air Resources Board (CARB) CH4 budget is a factor of 1.64 too low.

But step back for a moment, take the time to Google «planetary boundaries» and then follow out the links.

The planetary boundaries framework defines a safe operating space for humanity based on the intrinsic biophysical processes that regulate the stability of the Earth system.

NOAH is a grassroots organisation founded in 1969 working for equal access to the Earth's resources for current and future generations staying within planetary boundaries.

Also, the NCEP - NCAR data for the module of the ratio of the wind speed u ¯ PBL at the top of the planetary boundary layer to that at the EBL u ¯ enters the denominator of Eq.

The Planetary Boundaries framework proposes quantitative limits for human perturbation of critical Earth system processes, and a «safe operating space» within which human activity should attempt to stay in order to avert the risk of large - scale, possibly abrupt or irreversible environmental change.

Furthermore, it uses the translated boundaries as benchmarks for EU environmental performance,, and offers a preliminary mapping of current EU environmental policy in order to identify possible entry points for mainstreaming the Planetary Bboundaries as benchmarks for EU environmental performance,, and offers a preliminary mapping of current EU environmental policy in order to identify possible entry points for mainstreaming the Planetary BoundariesBoundaries.

As the 21st century global economy hits natural resource limits and planetary boundaries, fundamental questions about fair shares will start to arise — and these questions will increasingly come to be seen as the new front line for international development.

An international team of 18 experts, expanding on a 2009 report about «planetary boundaries» for safe human use, also [continue reading...]

The planetary - boundaries group, which published a sort of manifesto in 2009, argues for increased restraint and, where necessary, direct intervention aimed at bringing all sorts of things in the Earth system, from the alkalinity of the oceans to the rate of phosphate run - off from the land, close to the conditions pertaining in the Holocene.

Mohajan, Haradhan (2015): Planetary Boundaries Must not be Crossed for the Survival of Humanity.

Reading each of the chapters on planetary boundaries puts one in mind of an attempt to use the concept of irreducible complexity to make an argument for «intelligent design».

Despite his memorable description of the worst possible outcome of the Anthropocene as being «a Frankenstein planet stitched together by geological resurrection men» (p258), Morton's sympathies seem to lie closer to the Promethean scientists who seek to manage an unavoidable (and potentially even «good») Anthropocene, than with more precautionary scientists and environmentalists who use the term as a warning — a reason for humanity to pull back from scientifically identified «planetary boundaries» and lessen our interference.

In addition, planetary - scale temperature and wind fields were spectrally nudged beginning ~ 500 hPA with a strength of zero and linearly ramped up to 0.0003 s - 1 at the top of the atmosphere, to constrain the large - scale circulation but still allow for free evolution of the boundary layer states.

«Contributing to combating climate change and respecting planetary boundaries in the way we do business is a priority for us,» said Marie - Claire Daveu, Chief Sustainability Officer and Head of International Institutional Affairs, Kering, «The Science Based Targets initiative is enabling the business community to set meaningful and measurable goals to ensure that we align with the 2 °C global agenda and Kering is proud that our own GHG reduction ambitions have been validated by the initiative.»

Physical needs (that is, nutrition, sanitation, access to energy and elimination of poverty below the US$ 1.90 line) could likely be met for 7 billion people at a level of resource use that does not significantly transgress planetary boundaries.