In Tanzania, the government has been promoting water harvesting techniques at the household level. This has improved access to water for rural families. Also, some local NGOs are working on improving water quality by providing simple water treatment methods. These combined efforts are making a positive impact on water management in the country. They are gradually reducing the water stress and improving the living standards related to water availability and quality.
In Vietnam, community - based water management initiatives have been effective. Local communities are involved in maintaining water canals and irrigation systems. They also practice water - saving techniques in rice cultivation, like alternate wetting and drying, which has conserved water without sacrificing crop yields much.
In some African countries, water privatization led to the exclusion of the poorest communities. The private companies would often make deals with the local governments that favored urban and more developed areas. Rural areas were left behind. Women and children in these rural areas had to spend hours fetching water from far - away and often unclean sources. This not only affected their health but also took away time that could be used for education or other productive activities, which is a tragic situation.
In China, for example, in some cities like Beijing. Stringent policies were put in place to control industrial pollution, limit coal - burning in winter, and promote the use of clean energy sources. The air quality index has shown improvement over the years. Factories were required to upgrade their emission - control systems. And there was a large - scale promotion of electric buses and cars, which has had a positive impact on air quality.
In Rwanda, the government has made great efforts in waste management. They have introduced strict laws against littering. Public awareness campaigns have been carried out to educate people about the importance of proper waste disposal. As a result, the streets are much cleaner compared to before, and waste is being managed more systematically.
In Ethiopia, the Grand Ethiopian Renaissance Dam is a water success story in the making. It aims to provide electricity for the country and better manage water resources. Once completed, it will be Africa's largest hydroelectric power plant, which can boost Ethiopia's economic development and also potentially help with water storage and irrigation in the region.
In China, LONGi Green Energy Technology is a major success in the solar business. They have become one of the world's leading solar module manufacturers. Their success is due to continuous investment in research and development, which has led to high - quality and efficient solar products. They also benefit from China's strong support for the renewable energy industry, including favorable policies and a large domestic market. This has enabled them to expand globally and contribute significantly to the growth of the solar energy sector.
Brazil has seen positive impacts in relation to the Kyoto Protocol, especially in the area of deforestation control. Through various policies and international cooperation inspired by the protocol, Brazil has managed to significantly reduce deforestation rates in the Amazon rainforest. This has a huge impact on carbon sequestration as the Amazon is a major carbon sink. By protecting the forest, Brazil is not only helping in climate change mitigation but also conserving its rich biodiversity.
In South Korea, their success lies in their advanced testing capabilities. They were able to conduct a large number of tests quickly. This enabled them to identify and isolate cases early. Their technology - based contact tracing system was also very effective. For example, they used mobile phone data and other digital tools to track the movements of infected people and their contacts.
In China, the improvement of air quality in Beijing is a notable pollution success story. The government has implemented a series of policies, such as shutting down high - polluting factories, promoting clean energy use, and controlling vehicle emissions. As a result, the number of blue - sky days has increased significantly, and the air is much cleaner than before.
First, they need to focus on education. Just like South Korea which has a highly educated workforce that drives innovation in technology and industry. Second, good governance is crucial. Rwanda has shown that with clean and efficient governance, development can be achieved. Third, attracting foreign investment like Vietnam did can boost the economy by bringing in new technology and creating jobs.
In Brazil, some cities have had success with affordable housing. For example, Curitiba. The city has implemented urban planning strategies that include the creation of affordable housing areas. They have focused on providing basic infrastructure along with the housing. This has attracted low - income families and has been a step towards more inclusive urban development.