Exploring how greenhouse gases effect global climate change and cause the greenhouse effect

Download this

Inspire your students’ interest in the greenhouse effect and global warming.

Download all

Arctic sea ice floating in green blue sea

Source: © Shutterstock

Just the tip of the iceberg: how halogenated organic compounds are impacting global warming

Organic halogen compounds are known to have depleted atmospheric ozone concentrations, contributing to the ozone hole over the Antarctic. Now, a new investigation has revealed that ozone-depleting substances (ODS) were responsible for almost half of the warming and sea-ice loss witnessed in the Arctic between 1955 and 2005.

Halogenated organic compounds trap much more heat in the atmosphere than most other known compounds. For example dichlorodifluoromethane (CFC-12) has a global warming potential almost 11,000 times that of carbon dioxide. This means that, although ODS exist in much smaller atmospheric concentrations than other greenhouse gases, their impact can be just as significant.

Use the starter slide with your class to help students understand the greenhouse effect and global warming.

Read the full story in Chemistry World.

Put this in context

Add context and highlight diverse careers with our short career videos showing how chemistry is making a difference and let your learners be inspired by chemists like marine biogeochemist, Ben.