Sentences with phrase «higher carbon dioxide levels»

Study participants were exposed to moderately high carbon dioxide levels in other tests, which usually increases the breathing rate and depth.

Whether they could survive both a sustained rise in temperatures and the increasing acidification of the oceans that goes with higher carbon dioxide levels is another matter.

The results show that under high carbon dioxide levels, the bugs ate 88 per cent more leaf material than under current levels.

Scientists at the University of Adelaide in Australia report in Global Change Biology that high carbon dioxide levels of the kind expected at the end of the century could boost production at some levels in the marine food chain.

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators.

Higher carbon dioxide levels alter how the trees use nutrients, such as nitrogen.

«High carbon dioxide levels cause warming in tropics.»

Indeed, when the researchers exposed chloroplasts extracted from wheat cells to nitrate, they found that high carbon dioxide levels inhibited the amount of nitrogen that got inside the chloroplasts to be converted.

In its later life, «instead of trying to model utopia, Biosphere 2 would actually model dystopia — a future plagued by high carbon dioxide levels,» wrote Rebecca Reider, author of a definitive history of the project.

Higher carbon dioxide levels change the concentration of ions (electrically charged atoms and molecules) in the fishes» blood, altering the way that the neuroreceptors work.

But it also confirms many researchers» suspicion that higher carbon dioxide levels coincided with warmer intervals during the study period.

Climate scientists know that the planet is warming, and dangerously, as a consequence of ever higher carbon dioxide levels in the atmosphere thanks to changes humans have made to the planet's atmospheric chemistry — and they know it can get worse.

Plants such as coniferous trees that associate with ectomycorrhizal fungi can derive benefits from higher carbon dioxide levels, but plants associated with arbuscular mycorrhizal fungi, such as grassland vegetation, can't.

Saff said that poison ivy plants are expected to thrive with higher carbon dioxide levels.

«Bivalves have been around for a long time and have survived different geologic periods of high carbon dioxide levels in marine environments,» says George Waldbusser, an Oregon State University (OSU) marine ecologist and biogeochemist and lead author of the paper.

Scientists have found that high carbon dioxide levels cause squid to bungle attacks on their prey.

«We were curious about how this would change in a world with higher carbon dioxide levels.

In the longest - running experiment of its kind, the plants that were supposed to thrive in higher carbon dioxide levels have instead done less well.

«For all types of ecosystem the results show that high carbon dioxide levels can impede plants» ability to absorb nitrogen, and that this negative effect is partly why raised carbon dioxide has a marginal or non-existent effect on growth in many ecosystems,» says Johan Uddling.

However, high carbon dioxide levels, such as those anticipated by climate change models, may hinder the ability of fish to recognize one another and form groups with familiar individuals.

Pespeni does not think the higher carbon dioxide levels altered the genes in the urchins.

Fish exposed to higher carbon dioxide levels — which are expected to increase in the oceans for several decades — showed impaired cognitive function, learning difficulties, slowed visual capacity and altered sense of smell and sound.

High carbon dioxide levels in an indoor workspace can cause drowsiness, headaches, and even affect concentration.

But when they studied young white sea bass raised in tanks with seawater with high carbon dioxide levels, they saw the opposite effect: These fish experienced unusually extensive growth of their otoliths compared with fish raised in water with normal levels of carbon dioxide.

We established a timeline of early climate research, showing that studies dating to the 1950s pointed to the link between increased fossil fuel use and higher carbon dioxide levels.

Tip of the hat to John O'Sullivan Terri Jackson (MSc Physics)-- Principia Scientific — January 27, 2014 Higher carbon dioxide levels are coming from undeveloped countries in equatorial Africa and South America not from UK, EU and US, shows Japanese government satellite data.

The peer - reviewed Geophysical Research Letters reported Earth is undergoing substantial greening as a result of higher carbon dioxide levels and more - favorable weather conditions.

The UN estimates that poor nutrition already accounts for around 3 million deaths among young children every year, and experiments show that higher carbon dioxide levels in the atmosphere are associated with protein losses of around 5 %.

If the feedbacks from higher carbon dioxide levels are strongly positive, then in past geological eras when CO2 levels were much higher than today there should have occurred the «runaway climate» that James Hansen fantasizes about.

Each year, the high carbon dioxide levels of winter were higher, and each year, the summer levels did not fall as low.

We have to adapt to higher carbon dioxide levels, leading to even more global warming.

While experiments have shown that some plants respond well to higher carbon dioxide levels, others have shown that abnormally high levels of carbon dioxide can cause damage.

As Quirin Schiermeier reports in Nature, a new study published in the journal Global Biogeochemical Cycles has found that higher carbon dioxide levels will accelerate the expansion of «oxygen minimum zones» (OMZ) by fostering the rapid growth of bacterial populations in these waters.