They can be scientists, lawyers, political activists, or writers. Chemical engineers develop new methods of recycling and treating toxic chemicals and other hazardous wastes. Mechanical engineers design and build machines, such as power-producing machines that use alternative energy sources. Metallurgical, ceramic and materials engineers develop new materials for things like lightweight cars and high-temperature incinerators. Meteorology Weather forecasters interpret weather information and make predictions.
Dynamic meteorologists study air currents.
Physical meteorologists study the physical nature of the atmosphere. Industrial meteorologists work on air pollution, smoke emissions, etc. Climatologists collect, analyze, interpret and summarize past weather information to discover weather patterns. Hydrologists often work in meteorology, studying and forecasting floods and river flows. Aviation forecasters help air traffic controllers adjust air traffic to weather conditions.