How technology can help the planet.
The United Nations-sponsored Kyoto Protocol, which aims to reduce greenhouse-gas emissions, went into effect in more than 130 countries in February. Nonetheless, climate experts predict that the average global temperature will climb between 1.4°C and 5.8°C during this century. Researchers around the world are working on a wide variety of technologies -- from new sources of energy to microbes that could help livestock pass less methane -- aimed at mitigating and coping with climate change.
Use the following map as a key for locations where each topic is being mentioned (below):
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