Sentences with phrase «human population levels»

Suffering the Science: Climate change, people and poverty goes into greater detail, but in short the report says that hunger, disaster and disease will be the «new normal»: At 5 °C Rise Billions Could Die Even at 2 °C temperature increases, some 660 million people could be forced into devastating conditions the report says; and if we continue to follow a business - as - usual trajectory and allow something on the order of 5 °C temperature rise, human population levels could be reduced to just one billion people by the end of the century.

At present human population levels a repeat of the Little Ice Age a mere 400 years ago will cause mass starvation worldwide.

It described trends such as the growing hole in the ozone layer, pollution and depletion of freshwater sources, overfishing, deforestation, plummeting wildlife populations, as well as unsustainable rises in greenhouse gas emissions, global temperatures and human population levels.

research to determine optimum and ecologically sustainable human population levels and to publicise the results of such research; and

environmental protection by promoting policies that will lead or contribute to the achievement of stable human population levels allowing environmental sustainability.

Excerpt: President Obama's «science czar,» John Holdren, once floated the idea of forced abortions, «compulsory sterilization,» and the creation of a «Planetary Regime» that would oversee human population levels and control all natural resources as a means of protecting the planet — controversial ideas his critics say should have been brought up in his Senate confirmation hearings.

Without any supra - governmental authority, projections of population growth show the earth's human population leveling out at 9 billion people in a few decades and then slowly beginning to decline.

Not exact matches

For example, in addition to having higher levels of genetic diversity, populations in Africa tend to have lower amounts of linkage disequilibrium than do populations outside Africa, partly because of the larger size of human populations in Africa over the course of human history and partly because the number of modern humans who left Africa to colonize the rest of the world appears to have been relatively low (Gabriel et al. 2002).

«In a country like India, with a high population density and a high level of poverty, virtually every ecological niche is occupied by some occupational or cultural human group for its sustenance.

In all honesty probably.04 % or less of the human population really understands Quantum Physics on a basic level, yet when someone claims to know it people agree with whatever they say as fact.

Gods will is for us humans today to evolved to a level of conciousness that will prepare us for the challenges of our future survival, Scientists now predicts of hardships in the future due to over population and changes to the natural environment.and that is happening now with activists through out the world are reminding us of protecting nature.That is why we need a phsychological revolution to hasten the evolution of consciousness that will address the problems.Ideological and philosophical enlightenment had the past great minds to develop ideas and belief because God sent them to reality in their times.Abraham, Jesus, Mohammad, Buddha, and many other religious leaders to teach humanity the doctrines that God willed to be appropriate and applicable in those periods of their existence, Also great philosophers in another dimension of social involvement were born to interprete and connect philosophically as the second element of our conscience, Kant, Marx and countless of them also were born.To complete the triangular structure or dimension of our conscience is knowledge.

If by some way humanity were able to reduce the environmental impact of all its technologies by 10 per cent and there were no increase in per - person affluence, world population growth would return the collective impact of humans to the previous level in about five years.

Using high school level science, explain to us how 4 breeding pair of humans, with 5 members sharing much of the same genetic material, can provide enough genetic diversity for the population to continue.

There is no convincing evidence that a creator has favored any particular population, Christian or otherwise, over others during human history in terms of the natural levels of mortality.

«The initial dispersals out of Africa prior to 60,000 years ago were likely by small groups of foragers, and at least some of these early dispersals left low - level genetic traces in modern human populations.

The first government - funded human genomics research study performed on African soil — aimed at unlocking the unique genetic character of southern African populations — has revealed a high level of genetic diversity.

Her research interests include evaluation of serologic assays for diagnosis of syphilis and assessing the population - level impact of human papillomavirus vaccination.

«The lead levels in the mouse mothers were carefully designed to be within human population exposure levels.

Recent findings suggest that when human populations fall under a certain population density level, cultural knowledge disappears over time, Stringer said.

But while wildfires are estimated to contribute about 18 percent of the total PM2.5 emissions in the U.S., many questions remain on how these emissions will affect human populations, including how overall air quality will be affected, how these levels will change under climate change, and which regions are to most likely to be impacted.

The study found that less than one third of the 175 parks and reserves examined are currently conserving lions at more than 50 % of their «carrying capacity» — an ecological term for the natural population levels animals reach if human threats are minimal.

«Our multi-ethnic exploration of innate and adaptive immunity highlights a remarkable level of sharing across human populations of genetic variation influencing immune function, while identifying interesting instances of genetic effects on immune function that are specific to a population,» said Nir Hacohen, PhD, MGH and the Broad Institute, study author.

But population levels never dropped enough for humans to start losing their technological and symbolic innovations.

«It will be interesting in the future to do a full study of human populations using this strain - level method to see whether we can use bacteria to reconstruct the history of human migrations,» he said.

«Large - scale conservation strategies such as Panthera's Jaguar Corridor Initiative, which are instrumental to protect broadly distributed species such as jaguars, maintain their connectivity, and by doing so to ensure their long - term survival, need to incorporate genetic monitoring of wild populations to fully understand how these species respond to environmental changes and increasing levels of human impacts,» Wultsch said.

By the 1950s, a declining mayfly population in the western basin of Lake Erie indicated widespread anthropogenic eutrophication (human activities resulting in more nutrients such as phosphorus in the water, leading in turn to decreased oxygen levels).

With the current human population growth, these plants can not sustain such high levels of collection and habitat loss.»

Ultimately, Falk and Hildebolt found that people living in small - scale societies are not inherently more violent that those living in «civilized» states, and that war deaths scale similarly with population sizes across all levels of human society.

«We have animal literature, which shows direct links between exposure and adverse health outcomes, the limited human studies, and the fact that 90 to 100 percent of the population has measurable levels of these compounds in their bodies,» said John Meeker, an assistant professor of environmental health sciences at the University of Michigan School of Public Health and a lead author.

Now, thanks to the genomic revolution, researchers can actually track the population - level genetic shifts that mark evolution in action — and they're doing this in humans.

At the most fundamental level, the ecological footprint incorporates six measurements — city cover, carbon dioxide pollution, farm fields, fisheries, forests and rangeland — to reveal «the aggregate area of land and water ecosystems required by specified human populations to produce the ecosystem goods and services they consume and to assimilate their carbon waste.»

Better instruments and techniques have brought an unprecedented level of precision to these analyses, allowing researchers to zoom in on ever narrower timescales relevant for understanding climatic effects on human populations.

Sixty - six percent of participants had some level of detectable antibodies against four or more HA proteins, and a few had responses to all subtypes tested, most of which have not previously been detected in the human population.

But Schall wonders if, like some human malaria infections, the disease causes a low - level burden that hurts deer populations.

This research could have important implications for developing countries whose populations rely on rice as a staple of their diets and are in need of cheap, readily available material to improve soil quality and decrease arsenic levels that threaten human health.

«Similar to what you find with bipolar disorder in the nonperinatal population, the overall level of clinical severity and functional impairment really stands out as being of concern,» said Cynthia Battle, associate professor (research) of psychiatry and human behavior in the Alpert Medical School of Brown University.

The Teop people were selected to test Grimalda's theories on human cooperation for the small size of their communities (populations of around 50 inhabitants) and low levels of social complexity, though also because they present very different characteristics to those found in Western societies: they are horticulturists and gatherers; they use rudimentary tools to grow their food; they have no mechanised industry; and retribution for manual labour is infrequent.

The pattern of associations his team discovered suggests that today's population retains Neandertal DNA that may have provided modern humans with adaptive advantages 40,000 years ago — as they migrated into new non-African environments with different pathogens and levels of sun exposure.

To have any hope of slowing the pace and holding down the upper level temperatures that global warming will bring over this century, the human population of the world will need to make large reductions of the additional billions of tons of greenhouse gases they are projected to be pumping into the atmosphere, each year.

Dr. Sonntag studies this concept on the molecular and cellular level using a translational research approach that integrates the analysis of human material, such as postmortem brains, primary cell systems, and neural cell populations generated from patients» - or healthy individuals» - derived induced pluripotent stem cells (iPSC), or induced neurons (iNs), in combination with molecular, biochemistry, and lentivirus - mediated gene - engineering technologies.

Inventors at MUSC have identified a unique human CD4 + T cell population that expresses high levels of surface CD26, termed CD26high T cells, which mediate durable antitumor immunity in vivo, and have immediate clinical relevance for designing new vaccines and cellular therapies.

We predicted that these diversified epitope regions would be the targets of mutation as the 2009 H1N1 pandemic (pH1N1) lineage evolves in response to the development of population - level protective immunity in humans.

Revolutionise scientific understanding of the population biology of infectious disease, by providing an unprecedented level of information about genetic diversity, population structure, evolutionary selection, demography and gene flow, and by enabling this to be linked to information about the behaviour and migration patterns of human and pathogen populations.

These studies need to be repeated to determine the current levels of immunity, but it is very likely that many parts of the tropical world have already seen Zika virus in the past and there will probably be considerable herd immunity in the human population.

Our laboratory used two monoclonal antibodies, GCTM - 2 and TG30, recognizing the cell surface proteoglycan characteristic of primate ES cells and CD9 respectively, to fractionate human ES cell populations into four compartments according to their relative levels of expression of both markers [14].

Based on the proportions of SNP variants in the human population as estimated from a population - level mitochondrial database (mtDB)[50], the probability of sharing all 6 SNPs in common between VP42 and LNCaP by random chance alone is estimated at less than 0.00146 %.

Objectives: The study goal was to leverage 3 distinct lines of evidence - a family that included individuals with complete (compound heterozygote) ANGPTL3 deficiency, a population based - study of humans with partial (heterozygote) ANGPTL3 deficiency, and biomarker levels in patients with myocardial infarction (MI)- to test whether ANGPTL3 deficiency is associated with lower risk for CAD.

The proportion of each LNCaP − / 22Rv1 - associated SNP variant in the general human population, with the exception of SNPs 2617T, 10562G, 13227T, 2617T, 5985A, and 9247A for which information was not available, was estimated by searching mtDB, a population - level database of sequenced human mitochondrial genomes [50].

Although the National Toxicology Program said formaldehyde is «known to be a human carcinogen» in 2011, after studies linked it to cancers of the nose and myeloid leukemia, that research looked at manufacturing and funeral industry workers, who are exposed to higher levels of the substance than the general population, explains Laura Beane Freeman, PhD, an epidemiologist at the National Cancer Institute.

Human studies of the possible association between impaired fertility and high boron levels in water, soil and dust in a Turkish populations, and boron mining and processing workers, found no effect.