section_path: Administration/Local government/Environmental policies
section_name: Environmental policies
paragraph_text: Environmental policies
  
  Tokyo has enacted a measure to cut greenhouse gases. Governor Shintaro Ishihara created Japan's first emissions cap system, aiming to reduce greenhouse gas emission by a total of 25% by 2020 from the 2000 level. Tokyo is an example of an urban heat island, and the phenomenon is especially serious in its special wards. According to the Tokyo Metropolitan Government, the annual mean temperature has increased by about 3 °C (5.4 °F) over the past 100 years. Tokyo has been cited as a "convincing example of the relationship between urban growth and climate".
  
  In 2006, Tokyo enacted the "10 Year Project for Green Tokyo" to be realized by 2016. It set a goal of increasing roadside trees in Tokyo to 1 million (from 480,000), and adding 1,000 ha (2,500 acres) of green space, 88 ha (220 acres) of which will be a new park named "Umi no Mori" (Sea Forest) which will be on a reclaimed island in Tokyo Bay which used to be a landfill. From 2007 to 2010, 436 ha (1,080 acres) of the planned 1,000 ha of green space was created and 220,000 trees were planted, bringing the total to 700,000. As of 2014, roadside trees in Tokyo have increased to 950,000, and a further 300 ha (740 acres) of green space has been added.
  
  In 2023, the Tokyo Metropolitan Government launched the Tokyo Green Biz Project, an initiative that over the next 100 years, seeks to increase and preserve the city's greenery, create an online map designed to increase collaboration between residents and the local government, and create and promote green infrastructure, including guarding against heavy rainfall. They have also increased the footage of parks, and encourage citizens to get involved in pond cleaning, tree planting, and working as park guides.
  
  In 2018 the Kasai Marine Park became the first wetland in Tokyo to be registered under the Ramsar Convention. It opened in 1989.