False.
Shifting cultivation agriculture, also known as slash-and-burn agriculture, is a traditional practice that involves clearing a plot of land, burning the vegetation to release nutrients into the soil, and then planting crops. While this method of agriculture has been practiced for centuries in some parts of the world, it is not considered a sustainable response to population growth in tropical mountains by most conservation organizations.
In fact, many conservation organizations have criticized shifting cultivation agriculture for its negative impact on the environment, including deforestation, soil degradation, and loss of biodiversity. Instead, they advocate for more sustainable farming practices, such as agroforestry, conservation agriculture, and sustainable land management, which can help to increase food production while also protecting the environment.