Sentences with phrase «per human being on earth»

Not exact matches

If the next decade of human space transportation is about private companies finding and developing cheaper and more efficient ways into Earth orbit, the decade following will be all about space agencies learning how to operate farther and farther from home, with an eventual eye to orbiting and eventually landing humans on Mars in the mid-2030s (per NASA's timeline).

Suppose that today the human demand on the environment is equivalent to only 5 per cent of the carrying capacity of the Earth, which is surely an underestimate.

The study shows that humans need to feel at least 15 per cent of the gravitational force on Earth to figure out which way is up (PLoS One, doi.org/vhw).

Eating 6 meals per day is a popular concept in the bodybuilding world, and those are some of the leanest humans on Earth.

Put another way, not seeing that the colossal size of the multi-trillion dollar global economy is soon to become unsustainable in the relatively small, bounded world we inhabit is a misperception; not seeing that increasing per - capita consumption of Earth's limited resources by six billion, soon to be nine billion, people can not go on much longer, much less forever, is a mistaken impression; and not seeing that absolute global human population numbers, just like the population numbers of other species, can not increase endlessly, relative to a limited resource base, is a misconception, I suppose.

May be we need to admit that our behaviour and actions on the earth have significant impacts on the functioning natural and human urban environments and is the key factor, not global warming per se.

In 2008 there are more people literally existing on Earth on resources valued at less than $ 2 per day than the total human population in the year of my birth.

Thanks to humans, the earth was (since the 1990s) already experiencing atmospheric carbon dioxide levels in a realm not experienced on the planet since the Pliocene epoch, which was the period 2.6 to 5.3 million years ago that saw atmospheric carbon dioxide levels between 350 and 405 parts per million and average global temperatures that ranged between 2 and 3 degrees Celsius warmer than the climate of the 1880s.

Typically as human populations and per - capita consumption of natural resources increase, so do the negative impacts on Earth unless the activities and technologies involved are engineered otherwise.

Specifically, key parameters of the Human System, such as fertility, health, migration, economic inequality, unemployment, GDP per capita, resource use per capita, and emissions per capita, must depend on the dynamic variables of the Human — Earth coupled system.26 Not including these feedbacks would be like trying to make El Niño predictions using dynamic atmospheric models but with sea surface temperatures as an external input based on future projections independently produced (e.g., by the UN) without feedbacks.

And then when you consider that (1) humans are a tiny percentage of the total animal biomass on Earth — probably well under 1 % — and that most animals emit more CO2 on a per - pound - of - body - weight than humans do (especially small mammals and birds, which can emit 6 times or more CO2 per pound of body weight than humans)-- you're now looking at SEVERAL HUNDRED BILLION TONS OF CO2 from animal reespiration alone — on top of all the other natural sources of CO2.

The ratio of humans to insects on Earth is so heavily skewed in favor of insects that there are about two billion insects per human.