Tiny forests, also known as Miyawaki forests, are dense, urban forests that are designed to mimic natural forests, but on a much smaller scale. These forests have become increasingly popular in recent years as a way to support biodiversity, improve air and water quality, and mitigate the impacts of climate change in urban environments.

One of the main ways that tiny forests support climate in big cities is by sequestering carbon. Trees absorb carbon dioxide from the atmosphere through photosynthesis, and store it in their biomass. This helps to reduce the amount of greenhouse gases in the atmosphere, which can help to mitigate the effects of climate change. In fact, research has shown that tiny forests can sequester carbon at a rate that is up to 30 times higher than traditional forests.

In addition to carbon sequestration, tiny forests can also help to regulate local temperatures. In cities, the urban heat island effect can cause temperatures to be several degrees higher than surrounding areas. However, the shade provided by trees in tiny forests can help to reduce temperatures, making urban areas more comfortable and reducing the need for air conditioning.

Tiny forests can also have a positive impact on water quality. Trees absorb rainwater and help to prevent stormwater runoff, which can carry pollutants into local waterways. This can help to improve the quality of drinking water and reduce the risk of flooding.

For humans, tiny forests can provide a number of benefits beyond the environmental ones. For example, they can provide a space for recreation and relaxation, which can help to reduce stress and improve mental health. They can also help to create a sense of community by bringing people together to plant and care for the forest.

In terms of animals, tiny forests can provide habitat for a wide range of species, including birds, insects, and small mammals. This can help to support biodiversity in urban environments, which is important for maintaining healthy ecosystems. Additionally, by providing a safe space for animals to live and feed, tiny forests can help to reduce conflicts between humans and wildlife.

Overall, tiny forests have the potential to make a significant impact on the climate and environment in big cities. By sequestering carbon, regulating local temperatures, improving water quality, and providing habitat for wildlife, they can help to create healthier, more sustainable urban environments. And by providing a space for recreation and community-building, they can also have positive impacts on human well-being.