A kitchen garden, also known as a vegetable garden, has several environmental benefits. Here are some of the ways in which a kitchen garden can positively impact the environment:

Reduced carbon footprint: Growing your own produce reduces the need for transportation, which can have a significant impact on the environment. When you buy produce from the grocery store, it may have been transported from a different state or country, which requires the use of fossil fuels and contributes to greenhouse gas emissions. By growing your own produce, you can reduce your carbon footprint and help combat climate change.

Organic gardening: Growing your own produce allows you to use organic gardening techniques, which can help reduce the use of harmful pesticides and chemicals. This can prevent these substances from leaching into the soil and contaminating nearby water sources. Organic gardening can also help promote soil health and biodiversity, which are important for a healthy ecosystem.

Composting: A kitchen garden provides an opportunity to compost food scraps and yard waste, which can be used as a natural fertilizer for your garden. This reduces the amount of waste sent to landfills and provides a source of nutrients for your plants.

Conservation of biodiversity: A kitchen garden can provide habitat and food for pollinators such as bees, butterflies, and birds. By planting a variety of fruits and vegetables, you can attract a diverse range of pollinators, which can help promote biodiversity and improve the health of the ecosystem.

Water conservation: A kitchen garden can be designed to be water-efficient by using techniques such as drip irrigation, mulching, and rainwater harvesting. This can help conserve water and reduce the strain on local water resources.

In summary, a kitchen garden has several environmental benefits, including reduced carbon footprint, organic gardening, composting, conservation of biodiversity, and water conservation. By growing your own produce, you can contribute to a healthier and more sustainable environment.

References 

https://www.thegardencontinuum.com/blog/the-6-environmental-and-health-benefits-of-growing-your-own-food

https://extension.illinois.edu/blogs/ilriverhort/2020-08-03-grow-your-own-vegetables-benefit-your-health-and-environment#:~:text=Locally%20grown%20vegetables%20reduce%20carbon,than%20even%20a%20small%20farm.