Sentences with phrase «although human fossils»

Not exact matches

Although the hominin fossils were clearly different from modern humans and chimpanzees, the analysis found the rest of the fossils fell into a single, highly variable group.

Although Châtelperronian artifacts closely resemble those made by modern humans, many researchers have attributed them to Neandertals because they have sometimes been found with Neandertal fossils.

Although the fossils are still undated, making it hard to know where they sit in the human family tree, they already reveal a profoundly different way to be a member of our genus Homo.

Although mercury, a neurotoxin, occurs naturally in the environment, it is also released into the atmosphere when humans burn coal and other fossil fuels.

Although Lubenow considers 1470 to be human, he would place the smaller habilis fossils such as OH 24, ER 1805 and ER 1813 in the australopithecines.

Although the IPCC reports are conservative, accepting their validity commits the fossil - fuel industry to agreeing that (1) climate change is real, (2) humans are causing it and (3) it's dangerous.

I would define myself as favouring camp 3 and wholeheartedly support the move off fossil fuels, but I do not favour alarm - ism as in camp 4 (although can sympathise with all other camps) except views based on profit at the endangerment to humans and co species health, safety and well being.

Although 97 % of scientists and almost two - thirds of Americans agree that humans» use of fossil fuels is affecting our climate, the Trump Administration has gone to ridiculous lengths to deny that fact.

Although it is released by human activities through the combustion of fossil fuels, it is also formed by certain natural processes (see carbon cycle).

Although carbon dioxide from fossil fuel combustion is the primary cause of global warming, other human activities and greenhouse gases are also central to the climate story.

Although the natural fluxes of carbon dioxide into and out of the atmosphere are still more than ten times larger than the amount that humans put in every year by burning fossil fuels, the human addition matters disproportionately because it unbalances those natural flows.

And although such constraints are not directly connected to climate change driven by profligate combustion of fossil fuels, what humans achieve is a combination of genetic and environmental limitations.

Although global warming is driven by human behaviour — and in particular the prodigal burning of fossil fuels at an ever - accelerating rate to dump ever - greater quantities of carbon dioxide in the atmosphere — it is also influenced by natural climate rhythms.

«car crashes are probably the most expensive human cost associated to the use of fossil fuels — although I seldom hear people advocating their suppression just because of that»

It's only when deforestation and other land use changes made a net shift of carbon in the short term carbon cycle from plants back into the atmosphere, that humans began to make a net positive return of CO2 into the atmosphere (although deforestation is essentially reversible in principle), and it's very true to point out that industrial scale animal husbandry with its high cost in fossil - fuel - derived energy does mean that what might otherwise be a relatively closed system of cycling CO2 from the atmosphere through plants and then animals and back to the atmosphere, does become net positive with respect to CO2 emissions.

Larger image to save or print.The main human activity that emits CO2 is the combustion of fossil fuels (coal, natural gas, and oil) for energy and transportation, although certain industrial processes and land - use changes also emit CO2.