29th June (UPI) – Climatologists are increasingly calling for climate models to focus more on CO2 and less on temperature.
In a new study, researchers from the University of Exeter are claiming that warming is slowing even as the CO2 increase accelerates. Not only does current models ignore this reality, study authors suggest that they also ignore the myriad effects of CO2 on biology.
As current models use too narrow a bandwidth to describe future CO2 concentrations, predictions tend to ignore the effects of the gas on plants and animals
"Higher levels of CO2 cause increased growth for many plant species," said Exeter Researcher Richard Betts in a press release. "This results in a general" greening "of the vegetation, but also changes the composition of the ecosystems ̵
Higher CO2 levels also allow plants to consume less water, which can reduce the impact of drought on local ecosystems.
"These two factors can potentially increase crop yields and potentially help to offset some of the negative effects of climate change Englisch: bio-pro.de/en/region/stern/magazine/…1/index.html cause the nutritional value of the plants to be reduced by the extra CO2, "Betts said. "Rising CO2 also causes ocean acidification, which damages corals and some types of plankton."
The new research does not reduce the danger of global warming. Recent studies indicate that rising CO2 levels could trigger a number of serious threats, even as warming rates rise.
The latest publication, published this week in the journal Nature Climate Change, suggests that the effects of increasing CO2 concentrations have an effect (19659002). But the details buried in this mixed sack are not revealed when climatologists no longer concern themselves with the effects of rising CO2 levels on biological systems.
"To get the full picture, we need to consider these other effects of CO2 as well as rising temperatures," Betts said.
Betts and his research partners did not attempt to predict the effects of different levels of CO2 on biological processes. Their goal was to show that a greater diversity of CO2 levels is compatible with different warming scenarios.
"Instead of calculating the likelihood of a certain amount of warming when CO2 doubles, we calculated the probability of a certain amount of CO2 for a, especially the level of warming," Betts said. "This will allow us to estimate what the CO2 concentration range would be if global warming exceeds these levels, if CO2 in the atmosphere were the only thing we change."