* Whaling: Japan is one of the few countries that still engages in commercial whaling, despite a moratorium on commercial whaling by the International Whaling Commission (IWC). Greenpeace has called on Japan to stop whaling and has actively protested Japanese whaling vessels.
* Overfishing: Japan is one of the world's largest consumers of seafood, and its fishing practices have been criticized for contributing to overfishing and the decline of marine ecosystems. Greenpeace has called on Japan to reduce its seafood consumption and to adopt more sustainable fishing practices.
* Nuclear power: Japan has a significant nuclear power industry, and the Fukushima Daiichi nuclear disaster in 2011 raised concerns about the safety of nuclear power. Greenpeace has called on Japan to phase out nuclear power and to invest in renewable energy sources.
* Climate change: Japan is a major emitter of greenhouse gases, and its climate change policies have been criticized for not being ambitious enough. Greenpeace has called on Japan to reduce its greenhouse gas emissions and to take a more active role in combating climate change.