Compared with the technological investments needed to reduce greenhouse gas emissions globally, the cost of meeting the current demand for family planning is cheap.
与那些为了在全球范围内减少温室气体排放而花费在技术研发上的费用相比，维持现有的生育计划更为省钱。
2
Martin and her colleagues are studying the tomatoes in greenhouse trials and are planning a health study on human volunteers.
Martin和她的同事们正对这种番茄进行温室试验，并且为志愿者设计一个健康的研究方案。
3
The EU is planning to phase out use of the incandescent bulbs as part of its push to save energy, cut greenhouse gas emissions and fight climate change.