More than 100 countries adopted a treaty on February 13 that aims to regulate ballast water, the water carried in ships to provide it balance and stability. Ballast water carries with it marine species that wreak havoc in foreign ecosystems once they are introduced there. Marine aquatic alien species are believed to be one of the four biggest threats to marine environments. For more information click here CLOUD FORESTS: These are tropical rainforests characterised with the persistent presence of cloud and mist. They are huge repositories of several rare and endangered species and are a source of water supplies to millions. Yet these forests are threatened by climate change and human activities, says a recently released report of the United Nations Environment Programme (UNEP). Click here to learn more Download the report
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