The Kuril Islands dispute between Japan and Russia is over the sovereignty of the South Kuril Islands. These islands are claimed by Japan but occupied by Russia as the successor state of the Soviet Union.
Earth Day first began 52 years ago as an effort to organize teach-ins on university campuses about sustainability amid threats to climate change from human behaviours. Now, April 22 represents an annual date for nearly 200 countries to celebrate environmental diversity as well as to support environmental protection.