The document discusses how information and communication technologies (ICT) such as virtual networks, cloud computing, and eBooks can significantly reduce global warming by providing carbon-free alternatives to physical products and services. It suggests that ICT may allow countries to meet targets for reducing carbon emissions set by the Kyoto Protocol. The document also argues that a "carbon rewards" program could incentivize consumers and businesses to reduce their carbon footprint through the use of virtual ICT services, instead of penalizing them with carbon taxes.