Intergenerational equity: an important content of the principles of sustainable development, mainly referring to the need for contemporary people to preserve natural resources for the benefit of future generations. Which of the following are not directly related to "intergenerational equity". ['The Municipal Environmental Protection Bureau ordered a papermaking company in the city to invest heavily in installing a sewage treatment system, otherwise, production will never be allowed.', 'A scenic spot recently decided to demolish a number of hotels in the scenic spot that affect the natural landscape.', 'Not long ago an animal protection group rally again to protest against whaling in a country.', 'After a thorough investigation, a food company asked experts to research and develop a variety of green foods.']