About Careers Internship MedBlog Contact us

Increasing Ozone Levels Pose a Threat to Global Vegetation

by Medindia Content Team on October 31, 2007 at 12:54 PM
Increasing Ozone Levels Pose a Threat to Global Vegetation

Increasing ozone levels due to the growing use of fossil fuels will damage global vegetation and result in serious costs to the world's economy, a new study in the November issue of Energy Policy has revealed.

The analysis focused on how three environmental changes (increases in temperature, carbon dioxide and ozone) associated with human activity affected crops, pastures and forests.


The research showed that increases in temperature and in carbon dioxide might actually benefit vegetation, especially in northern temperate regions.

However, those benefits might be more than offset by the detrimental effects of increases in ozone, notably on crops, the findings revealed.

Ozone, a form of oxygen, the researchers said, was an atmospheric pollutant at the ground level.

The scientists performed their analysis using the MIT Integrated Global Systems Model, which combines linked state-of-the-art economic, climate and agricultural computer models to project emissions of greenhouse gases and ozone precursors based on human activity and natural systems.

The researchers found that the economic cost of the damage could be moderated by changes in land use and by agricultural trade, with some regions more able to adapt than others.

But the overall economic consequences would be considerable. If nothing were done, by 2100 the global value of crop production would fall by 10 to 12 percent, they said. "Even assuming that best-practice technology for controlling ozone is adopted worldwide, we see rapidly rising ozone concentrations in the coming decades," said John M. Reilly, associate director of the MIT Joint Program on the Science and Policy of Global Change. "That result is both surprising and worrisome," he said.

The study further said that without emission restrictions, growing fuel combustion worldwide would push global average ozone up 50 percent by 2100. That increase would have a disproportionately large impact on vegetation, as ozone concentrations in many locations would rise above the critical level where adverse effects are observed in plants and ecosystems.

"What is the net effect of the three environmental changes? Without emissions restrictions, yields from forests and pastures would decline slightly or even increase because of the climate and carbon dioxide effects. But crop yields would fall by nearly 40 percent worldwide," the study said.

Source: ANI
Font : A-A+



Latest Environmental Health

Groundbreaking Study Forecasts 2023 as Hottest Year on Record
As global warming accelerates, the need for immediate and ongoing action to mitigate climate change's catastrophic consequences becomes imperative.
How Forever Chemicals Lead to Delayed Puberty?
Forever chemicals or per- and polyfluoroalkyl substances (PFAS) exposure in children, may cause them to mature later during puberty.
Carbon Footprint of a Hospital Bed Calculated
To achieve more substantial reductions in emissions, hospital sustainability efforts must extend their focus beyond the surface.
Most Parents Report Children Facing Poor Air Quality
Most parents in Canada support moving school activities indoors to protect children from poor air quality.
Rising Demand for Bioinsecticides Reflects a Transition to Eco-Friendly Agriculture
The increasing demand for bioinsecticides reflects a broader shift toward sustainable agriculture, prioritizing long-term ecological health and food security.
View All
This site uses cookies to deliver our services.By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use  Ok, Got it. Close
Greetings! How can I assist you?MediBot

Increasing Ozone Levels Pose a Threat to Global Vegetation Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests