Navigation Links
Population bomb may be defused, but research reveals ticking household bomb
Date:2/11/2014

After decades of fretting about population explosion, scientists are pointing to a long-term hidden global menace.

The household. More specifically, the household explosion.

In this week's Early Online edition of Population and Environment, Jianguo "Jack" Liu, director of the Michigan State University Center for Systems Integration and Sustainability, and former students Mason Bradbury and Nils Peterson present the first long-term historical look at global shifts in how people live. One large household sheltering many people is giving way across the world to households comprised of fewer people sometimes young singles, sometimes empty nesters, and sometimes just folks more enamored with privacy.

In the late 1960s, ecologist Paul Ehrlich of Stanford University sounded the alarm about population growth. Now, Liu and his colleagues are pointing out that even though population growth has been curbed, the propensity to live in smaller households is ratcheting up the impact on the natural resources and the environment worldwide.

"Long-term dynamics in human population size as well as their causes and impacts have been well documented," said Liu, who is the Rachel Carson Chair in Sustainability. "But little attention has been paid to long-term trends in the numbers of households, even though households are basic consumption units."

More households require more lumber and other building materials. Smaller households are generally less efficient, with fewer people using proportionally more energy, land and water. Liu, with Ehrlich and others, published a paper in Nature in 2003 noting that the number of households globally was outpacing population growth between 1985 and 2000.

The latest research delves significantly further into history. Reviewing data dating back to 1600, the researches revealing that household size has been declining in some countries for centuries, adding a largely unaccounted for
'/>"/>

Contact: Sue Nichols
nichols@msu.edu
517-432-0206
Michigan State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. When populations collide
2. Population stability hope in species response to climate change
3. Genetic background of sporadic amyotrophic lateral sclerosis in the Chinese Han population
4. Study finds Catalina Island Conservancy contraception program effectively manages bison population
5. Argonne partners with Metropolitan Water Reclamation District to study Chicago River microbe population
6. New study identifies 5 distinct humpback whale populations in North Pacific
7. UI biology professor finds Goldilocks effect in snail populations
8. Population Council to present more than 40 studies at International Conference on Family Planning
9. Genetic rarity rules in wild guppy population, study finds
10. Aboriginal hunting practice increases animal populations
11. Caribbeans native predators unable to stop aggressive lionfish population growth
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/21/2014)... Irvine, Calif., July 21, 2014 Dysfunction in ... about 2,000 genes in the brain,s prefrontal cortex ... complex neuropsychiatric disorders, such as schizophrenia, according to ... gene activity in brain cells that receive this ... deficiencies can affect a variety of behavioral and ...
(Date:7/21/2014)... satellites detected 154 hotspots in areas across Riau province ... had increased again following a decline in rainfall. ... far higher than what had been reported one day ... hotspots were scattered in six regencies and municipalities, most ... and the related haze it creates could potentially spread ...
(Date:7/21/2014)... change, due to greenhouse gasses emitted by livestock. New ... and that beef cattle are responsible for far more ... is published by Climactic Change . , ... to climate change. It is released by vehicles, industry, ... greenhouse gas totals. But methane and nitrous oxide are ...
Breaking Biology News(10 mins):UCI researchers find epigenetic tie to neuropsychiatric disorders 2Climate: Meat turns up the heat 2
... with a large-scale "geoengineering" fix, such as having a ... or building tens of millions of chemical filter systems ... But Richard Turco, a professor in ... a member and founding director of UCLA,s Institute of ...
... Rochester have designed a gene that produces a ... in healthy cells., The findings may help address ... ability to specifically and effectively target cancer cells. ... to insert "self-destruct" codes into the modified gene, ...
... Commonwealth University Life Sciences survey shows that eight in 10 ... who want it, and 54 percent say that the benefits ... about genetic research are varied with a plurality of 38 ... known about how to conduct such research safely. About three ...
Cached Biology News:No quick or easy technological fix for climate change, researchers say 2No quick or easy technological fix for climate change, researchers say 3No quick or easy technological fix for climate change, researchers say 4Modified gene targets cancer cells a thousand times more often than healthy cells 2Modified gene targets cancer cells a thousand times more often than healthy cells 3VCU survey: US public supports genetic research, testing and government spending on research 2VCU survey: US public supports genetic research, testing and government spending on research 3
(Date:7/21/2014)... a chain of carbon atoms can turn it from ... University scientists. , Stretching the material known as carbyne ... by just 3 percent can begin to change its ... mechanically activated nanoscale electronics and optics. , The finding ... appears in the American Chemical Society journal Nano ...
(Date:7/21/2014)... 21, 2014 Sleep disturbances such ... closely correlated with depression. According to a study ... "About three quarters of depressed patients have insomnia ... of young depressed adults and 10% of older ... cause huge distress, have a major impact on ...
(Date:7/18/2014)... , July 18, 2014  Neogen Corporation (Nasdaq: ... , Neogen,s chief operating officer and president, has resigned, ... work as a consultant going forward on special projects. ... has been in this position since September 2013. On ... James Herbert , who has been Neogen,s chief ...
(Date:7/18/2014)... Cambridge, MA (PRWEB) July 18, 2014 ... in Budapest with US offices in Cambridge, MA, ... a combination Assay and Software product that leverages ... use on the Illumina® MiSeq sequencing platform. The ... with The Children’s Hospital of Philadelphia (CHOP) and ...
Breaking Biology Technology:Carbyne morphs when stretched 2Carbyne morphs when stretched 3Open Label Data on Enhanced Sleep Released by JayMac Pharmaceuticals, LLC 2Open Label Data on Enhanced Sleep Released by JayMac Pharmaceuticals, LLC 3Omixon Launches Holotype HLA for NGS-based HLA Genotyping 2Omixon Launches Holotype HLA for NGS-based HLA Genotyping 3
... , , , Multiporator , , , , , ... Transfection Protocol , Protocol No. 4308 915.026 11/2001 , ... , , , ... line), , , ...
... , , , Multiporator / Electroporator 2510 , , , , , ... Transformation Protocol , Protocol No. 4308 915.525 01/2002 , ... , , , ... , Cell type , Bacteria, gram positive, ...
... Multiporator / Electroporator 2510 , , , , , , , ... Protocol No. 4308 915.540 07/2002 , , ... , , Microorganism , ... Cell type , Bacteria, gram positive, , ...
Cached Biology Technology:Sp20-Ag14 2Sp20-Ag14 3Nocardia asteroides 2Pediococcus spp. 2
... CHEMICON's Cell Transformation Detection Assay is an ... is considered the most stringent assay for ... this assay, cells (pre-treated with carcinogens or ... in soft agar medium for 21-28 days. ...
The Saturn 2200 answers your GC/MS questions with the CP-3800 GC and the 2000 Series Ion Trap MS! These components create a platform for the worlds most versatile GC and flexible MS. Both deliver une...
... Kit uses a simplified procedure and streamlines ... The kit is based on the three ... and sodium bisulfite where cytosine is converted ... innovative in-column desulphonation reaction eliminates several precipitation ...
... Invitrogen makes blotting of E-PAGE Gels ... pre-cut fiber blotting pad and several types ... perfectly fit 8.6 cm x 13.5 cm ... PVDF membranes are designed for western transfer ...
Biology Products: