Navigation Links
Human's ecological footprint in 2015 and Amazonia revealed

A recent study shows human population size and affluence are the main drivers of human-caused environmental stressors, while urbanization, economic structure and age of population have little effect.

Modeling global average productivity to compare environmental tradeoffs and human-induced stressors in the environment Thomas Dietz (Michigan State University), Eugene Rosa (Washington State University) and Richard York (University of Oregon) studied the impact of humans on the environment in a recent study, "Driving the human ecological footprint," published in the February issue of Frontiers in Ecology and the Environment. The researchers focused on the ecological footprint, a measure of how consumption may affect the environment by taking account of food and fiber production, energy use, and human use of land for living space and other purposes.

Population size and affluence have long been hypothesized to be primary drivers of environmental impact, however doubts over their relative impact remained due to a lack of extensive testing and contradictory arguments in regards to the impact of affluence. In the study Dietz and colleagues estimate the relative importance of the hypothesized drivers of environmental impact at the nation-state level. They then utilize their results to project future levels of stressors.

Restricting their data to countries of at least one million people, Dietz and colleagues calculated basic forms of consumption, including crops, meat, energy, and living space, using data from the World Wide Fund for Nature. United Nations reports were used to measure human well-being, population, and urbanization, while data from the World Bank were used to determine economic influences. The relative importance of each hypothesized driver on environmental impact was then estimated and used to project future levels of stressors. They found that increased affluence exacerbates environmental impacts and, when combined with populati on growth, will substantially increase the human footprint on the planet.

Researchers projected 20 nations that will have the largest ecological footprints in 2015, with the United States, China and India, topping the list. According to the study, the greatest absolute increase will occur with China and India, where both population and economic growth, represent 37 percent of the increase in the global human footprint.

"Increasing energy efficiency to counteract these impacts is feasible, but would need a focused international effort to succeed," say the researchers.

According to the study, one advantage to the rapid growth of these two nations is with the development of their infrastructures in the early 21st Century: China and India are positioned to invest in more efficient technologies.

"China would need to improve its technical efficiency at a rate of about 2.9 percent per year, and India by about 2.2 percent per year to offset the projected growth of their ecological footprints," say the scientists.

Amazonia revealed: forest degradation and the loss of ecosystem goods and services in the Amazon Basin

Also appearing in the February issue of Frontiers, researchers review newly revealed changes in the Amazon rainforests and the ecosystem services they provide.

The Amazon Basin is one of the world's most important bioregions, harboring rich array of plant and animal species and offering a wealth of goods and services to society. For years, ecological science has shown how large scale forest clearings cause declines in biodiversity and the availability of forest products. Yet some important changes in the rainforests, and in the ecosystem services they provide, have been underappreciated until recently.

Emerging research indicates land use in the Amazon goes far beyond clearing large areas of forest; selective logging and other canopy damage is much more pervasive than once beli eved. Deforestation causes collateral damage to the surrounding forests ?through enhanced drying of the forest floor, increased frequency of fires, and lowered productivity. The loss of healthy forests can degrade key ecosystem services, such as carbon storage in biomass and soils, the regulation of water balance and river flow, the modulation of regional climate patterns, and the amelioration of infectious diseases.


'"/>

Source:Ecological Society of America


Related biology news :

1. Essential mangrove forest threatened by cryptic ecological degradation
2. An (ecological) origin of species for tropical reef fish
3. UN: World in big ecological mess
4. Logging changed ecological balance for monkeys, damaged health
5. The ecological effects of the Chernobyl disaster
6. Applying ecological laws to bacteria
7. Gene chips forecast ecological impacts of climate change
8. New maps reveal true extent of human footprint on Earth
9. Alleged 40,000-year-old human footprints in Mexico much, much older than thought
10. Amazonian terra preta can transform poor soil into fertile
11. Fragmentation rapidly erodes Amazonian biodiversity
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/22/2016)... -- The American College of Medical Genetics and Genomics was once ... one of the fastest-growing trade shows during the Fastest 50 ... Las Vegas . Winners ... each of the following categories: net square feet of paid ... The 2015 ACMG Annual Meeting was ranked 23 out of ...
(Date:6/16/2016)... June 16, 2016 The ... expected to reach USD 1.83 billion by 2024, ... Research, Inc. Technological proliferation and increasing demand in ... expected to drive the market growth. ... The development of advanced multimodal techniques for ...
(Date:6/3/2016)... , June 3, 2016 ... Management) von Nepal ... und Lieferung hochsicherer geprägter Kennzeichen, einschließlich Personalisierung, ... führend in der Produktion und Implementierung von ... der Ausschreibung im Januar teilgenommen, aber Decatur ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... ... December 01, 2016 , ... PhUSE ... and the popularity of US Single Day Events (SDE) to organize a multiple-day ... 2018, in Raleigh, NC. Topics of the pharmaceutical and life sciences industry will ...
(Date:12/2/2016)... PRUSSIA, PA (PRWEB) , ... December 01, 2016 , ... ... is through industry-wide collaboration, standardization and a beautiful technology experience. All three tenets were ... more than 100 clinical trial leaders from over 40 sponsor, CRO and site organizations ...
(Date:12/2/2016)... ... December 02, 2016 , ... ... dedicated to collaboratively developing improved chemistry, manufacturing and control technologies for the ... UHPLC, with robust, probe-based sampling. , Online liquid chromatography analysis is ...
(Date:12/2/2016)... NEW YORK , Dec. 1, 2016   ... liquid photopurification, announced today that the Company has concluded ... has the right for a 90-day period to acquire ... invoice value of approximately USD 3.7 million.  ... an agreement with Tamarack under which Tamarack will seek ...
Breaking Biology Technology: