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:6/14/2017)... 15, 2017  IBM (NYSE: IBM ) is introducing several ... dedicated to developing collaboration between startups and global businesses, taking ... During the event, nine startups will showcase the solutions they ... industries. France is ... with a 30 percent increase in the number of startups ...
(Date:5/6/2017)... , May 5, 2017 ... just announced a new breakthrough in biometric authentication ... exploits quantum mechanical properties to perform biometric authentication. These ... smart semiconductor material created by Ram Group and ... finance, entertainment, transportation, supply chains and security. Ram ...
(Date:4/17/2017)... MELBOURNE, Florida , April 17, 2017 ... security technology company, announces the filing of its 2016 Annual Report ... Securities and Exchange Commission. ... Report on Form 10-K is available in the Investor Relations section ... well as on the SEC,s website at http://www.sec.gov . ...
Breaking Biology News(10 mins):
(Date:7/26/2017)... ... July 25, 2017 , ... Proscia Inc. , a software solutions provider ... panelist at 2017 MedCity CONVERGE. His talk, “The Davids vs. the Cancer Goliath,” will ... emerging technology (AI, VR, Big Data) sectors are taking aim at cancer diagnosis and ...
(Date:7/26/2017)... Yorba Linda, Ca (PRWEB) , ... July 25, ... ... will host August 22, attendees will garner a better understanding of the considerations ... for HDR-mediated CRISPR-Cas9 applications. , The use of CRISPR-Cas9 to create targeted double-strand ...
(Date:7/26/2017)... ... July 26, 2017 , ... Spectral imaging is a ... day. This unique capability combines high resolution imaging with spectral analysis. ... unprecedented datasets for chemical analysis, quality control, and decision-making. , Snapshot spectral imaging ...
(Date:7/26/2017)... ... July 26, 2017 , ... Joni Rutter, Director ... Institutes of Health (NIH), will be one of the esteemed presenters at the ... for a multi-stakeholder discussion on the latest advancements in the precision and personalized ...
Breaking Biology Technology: