How to solve the global warming problem?
We should use less coal（煤). Instead we should use natural gas and oil which emit lesser CO2. But for long term, we should develop renewable energy such as solar（太陽能）, geothermal（地熱能）, HEP（水力）since they do not release any CO2.
For transportation, we should use LPG instead of diesel fuels. We should use more public transport instead of private cars.
We can also plant more vegetation at home, schools and office as they can absorb CO2.
We can use lesser hair sprays（噴髮膠) and foam products like foam lunch box（發泡膠飯盒）.
We can also reduce wastage therefore less CO2 will be emitted during the process of incineration and lanfill（焚化及堆填). We should recycle more therefore.
For drivers, we should use fuel-saving and environmentally fiendly vehicles and turn off engines when idling.