-
International trade drives biodiversity threats in developing nations
-
Human activities are causing Earth’s sixth major extinction event1— an accelerating decline of the world’s stocks of biological diversity at rates 100 to 1,000 times pre-human levels2. Historically, low-impact intrusion into species habitats arose from local demands for food, fuel and living space3. However, in today’s increasingly globalized economy, international trade chains accelerate habitat degradation far removed from the place of consumption. Although adverse effects of economic prosperity and economic inequality have been confirmed4,5, the importance of international trade as a driver of threats to species is poorly understood. Here we show that a signifi- cant number of species are threatened as a result of international trade along complex routes, and that, in particular, consumers in developed countries cause threats to species through their demand of commodities that are ultimately produced in developing countries. We linked 25,000 Animalia species threat records from the International Union for Conservation of Nature Red List to more than 15,000 commodities produced in 187 countries and evaluated more than 5billion supply chains in terms of their biodiversity impacts. Excluding invasive species, we found that 30% of global species threats are due to international trade. In many developed countries, the consumption of imported coffee, tea, sugar, textiles, fish and other manufactured items causes a biodiversity footprint that is larger abroad than at home. Our results emphasize the importance of examining biodiversity loss as a global systemic phe- nomenon, instead of looking at the degrading or polluting producers in isolation. We anticipate that our findings will facilitate better regulation, sustainable supply-chain certification and consumer product labelling.
Located in
Resources
/
Climate Science Documents
-
Introducing Burner Bob - A Cool Dude with a Hot Message!
-
Burner Bob - A Cool Dude with a Hot Message!
Located in
Training
/
Videos, podcasts, multimedia
/
Videos
-
Introduction to the Landscape Partnership Learning Network
-
Located in
Training
/
Videos and Webinars
-
Invasive Zebra Mussels Found in Pet Stores in 21 States
-
Agencies, industry in coordinated response to help stores and consumers find and destroy troublesome shellfish
Located in
News & Events
-
Investment, transformation and leadership CDP S&P 500 Climate Change Report 2013 On behalf of 722 investors representing US$87 trillion in assets
-
Sample text : Fears are increasing over future climate change impacts as we see more extreme weather events, Hurricane Sandy the most noted with damages totalling some $42 billion.2 The unprecedented melting of the Arctic ice is a clear climate alarm bell, while the first 10 years of this century have been the world’s hottest since records began, according to the World Meteorological Organization.
The result is a seismic shift in corporate awareness of the need to assess physical risk from climate change and to build resilience.
For investors, the risk of stranded assets has been brought to the fore by the work of Carbon Tracker. They calculate around 80% of coal, oil and gas reserves are unburnable, if governments are to meet global commitments to keep the temperature rise below 2°C. This has serious implications for institutional investors’ portfolios and valuations of companies with fossil fuel reserves.
The economic case for action is strengthening. This year, we published The 3% Solution3 with the World Wildlife Fund showing that the US corporate sector could reduce emissions by 3% each year between 2010 and 2020 and deliver $780 billion in savings above costs as a result. 79% of US companies responding to CDP report higher ROI on emissions reduction investments than on the average business investment.
Located in
Resources
/
Climate Science Documents
-
Invited Review: Quantifying surface albedo and other direct biogeophysical climate forcings of forestry activities
-
By altering fluxes of heat, momentum, and moisture exchanges between the land surface and atmosphere, forestry and other land-use activities affect climate. Although long recognized scientifically as being important, these so-called biogeophysical forcings are rarely included in climate policies for forestry and other land management projects due to the many challenges associated with their quantification. Here, we review the scientific literature in the fields of atmospheric science and terrestrial ecology in light of three main objectives: (i) to elucidate the challenges associated with quantifying biogeophysical climate forcings connected to land use and land management, with a focus on the forestry sector; (ii) to identify and describe scientific approaches and/or metrics facilitating the quantification and interpretation of direct biogeophysical climate forcings; and (iii) to identify and recommend research priorities that can help overcome the challenges of their attribution to specific land-use activities, bridging the knowledge gap between the climate modeling, forest ecology, and resource management communities. We find that ignoring surface
biogeophysics may mislead climate mitigation policies, yet existing metrics are unlikely to be sufficient. Successful metrics ought to (i) include both radiative and nonradiative climate forcings; (ii) reconcile disparities between biogeophysical and biogeochemical forcings, and (iii) acknowledge trade-offs between global and local climate benefits. We call for more coordinated research among terrestrial ecologists, resource managers, and coupled climate modelers to harmonize datasets, refine analytical techniques, and corroborate and validate metrics that are more amenable to analyses at the scale of an individual site or region.
Located in
Resources
/
Climate Science Documents
-
Irreversible climate change due to carbon dioxide emissions
-
The severity of damaging human-induced climate change depends not only on the magnitude of the change but also on the potential for irreversibility. This paper shows that the climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop. Following cessation of emissions, removal of atmospheric carbon dioxide decreases radiative forcing, but is largely compensated by slower loss of heat to the ocean, so that atmospheric temperatures do not drop significantly for at least 1,000 years. Among illustrative irreversible impacts that should be expected if atmospheric carbon dioxide concentrations increase from current levels near 385 parts per million by volume (ppmv) to a peak of 450 – 600 ppmv over the coming century are irreversible dry-season rainfall reductions in several regions comparable to those of the ‘‘dust bowl’’ era and inexorable sea level rise. Thermal expansion of the warming ocean provides a conservative lower limit to irreversible global average sea level rise of at least 0.4–1.0 m if 21st century CO2 concentrations exceed 600 ppmv and 0.6 –1.9 m for peak CO2 concentrations exceeding 1,000 ppmv. Additional contributions from glaciers and ice sheet contributions to future sea level rise are uncertain but may equal or exceed several meters over the next millennium or longer.
dangerous interference precipitation sea level rise warming
Located in
Resources
/
Climate Science Documents
-
Is Embracing Change Our Best Bet?
-
Restoration ecology and conservation
biology are both under pressure to
adapt to accelerated anthropogenic
global change. Pristine areas free from human
infl uence no longer exist and, arguably, have
not for thousands of years ( 1). Major landcover
transformations for agriculture affected
vast territories more than 3000 years ago ( 2).
Large mammal extinctions in the late Pleistocene
(circa 12,000 years ago) were related to
human expansion ( 3). And relocation of nowwidespread
naturalized species was already
happening 4230 years ago, when domestic
dogs (dingos) were introduced into Australia
by way of southeast Asia ( 4). Thus, humansculpted
landscapes are what we have been
mostly managing for millennia. Because the
rate of alteration has dramatically increased
over the past 200 years, those ancient localized
impacts now affect most of the world.
Additionally, other indirect impacts act at a
planetary scale—e.g., increased carbon dioxide
concentration and nitrogen deposition
Located in
Resources
/
Climate Science Documents
-
Is Global Warming Causing More, Larger Wildfires?
-
Higher spring and summer temperatures and earlier snowmelt are extending the wildfire season and increasing the intensity of wildfires in the western United States.
Located in
Resources
/
Climate Science Documents
-
ISC Meeting May 4, 2011
-
The Interim Steering Committee (ISC) meeting took place on Wednesday, May 4th, 2011 from 8:00 a.m. - 5:00 p.m. The links appear in order of discussion as laid out in the agenda.
Located in
Cooperative
/
…
/
Steering Committee
/
Past SC Meetings and Materials
