Sentences with phrase «since oxygen concentrations»
«Since oxygen concentrations in the ocean naturally vary depending on variations in winds and temperature at the surface, it's been challenging to attribute any deoxygenation to climate change.»
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«Since oxygen concentrations in the ocean naturally vary depending on variations in winds and temperature at the surface, it's been challenging to attribute any deoxygenation to climate change.
Not exact matches
High nitrate concentrations can be particularly dangerous for babies under six months, since nitrate interferes with the ability of blood to carry oxygen.
Despite extensive measures to protect the Baltic Sea from anthropogenic activities since the late 1980s, oxygen concentrations continue to decrease.
Since 1957, environmental parameters such as oxygen concentrations, temperature, salinity and nutrients have been measured monthly at the Boknis Eck time series station.
The oxygen concentrations would have been deadly to most fish and insect species that feed on mosquitoes, but would not harm the mosquito species used in this experiment, since they use a syphon tube to breath air.
Since then, numerous short - lived biotic events — typically marked by significant climatic perturbations — took place when oxygen concentrations in the ocean dipped episodically.
Measured decreases in the fraction of other forms of carbon (the isotopes 14C and 13C) and a small decrease in atmospheric oxygen concentration (observations of which have been available since 1990) show that the rise in CO2 is largely from combustion of fossil fuels (which have low 13C fractions and no 14C).