将下列段落翻译成中文 Biomass energy is a double-edged sword, depending on how and where it is produced. It can be produced in ways that reduce global warming pollution or in ways that increase it. It can help clean up the air , water, and soil and protect wildlife, or it can degrade our lands, forests, and water, threaten biodiversity, and harm public health. Most of the biomass we use commercially today comes from resources that are not sustainable. Our challenge is to ensure that biomass energy is produced in ways that not only reduce global warming pollution, but also protect the environment and do not increase the price of food. In other words, biomass energy should do the job better than the fossil fuels.