Yes, many companies have definitely been forced to reduce pollutants. This is mainly because governments around the world are putting stricter environmental laws in place. Also, people are now more aware of environmental issues and demand greener products, which pushes companies to change their ways. Plus, there are international agreements that most countries are part of, which set global standards for pollution.

No, not all companies have been forced to reduce pollutants. In many parts of the world, especially in developing countries, industries are still not regulated properly. The enforcement of environmental laws can be quite lax. Moreover, the cost of adopting green technologies can be too high for some companies, which discourages them from making necessary changes. Sometimes, companies might even find loopholes in the laws to avoid compliance.

It really depends on the industry and the country. For example, the automotive industry has made significant strides in reducing emissions due to strict regulations. However, some manufacturing sectors are still behind because they might not have as strict regulations, or the technology needed is too expensive. Local economic conditions and policies also greatly influence how much companies are willing to invest in reducing pollutants.