Causes of global warming
Experts believe that the main reasons for accelerating global warming are "human activities and the use of fossil fuels (which will produce carbon dioxide after combustion)."
The impact of human activities on global warming is quite clear, including the impact of carbon dioxide, the sun, etc., but there is another unexplained cyclical factor that has an important impact on observing future climate changes.
One possible explanation for this factor was first proposed six years ago by atmospheric scientist Michael Schlesinger and his student Navin Ramankutty at the University of Illinois. In the February 24, 1994 issue of Nature, they believed that temperature oscillations occurring in the North Atlantic and nearby land areas would periodically warm or cool the atmosphere (with a period of about 65-70 years). Therefore, sometimes it promotes the greenhouse effect and sometimes it suppresses it. Other possible causes are due to excess greenhouse gas emissions.
Impact and Crisis of Global Warming
The impacts of global warming include: melting of polar ice sheets, rising sea levels, submerging lower-lying coastal lands, impacting low-lying countries and coastal elite areas of most countries, and causing global climate change, resulting in abnormal heavy rains, droughts, and the expansion of desertification. , which will cause great harm to the ecological system, water and land resources, human social and economic activities and life safety.
The impacts of warming on Taiwan include: rising sea levels will increase the chance of seawater intrusion, reduce land use area, and have an impact on the ecology of shallow sea aquaculture. If the concentration of carbon dioxide in the atmosphere doubles, it will have an impact on crops such as cotton, cucumbers, and rice. Moreover, as temperatures rise and rainfall decreases, corn production will decrease by 10-20% and wheat production by 7-8%, and the overall farming area will gradually decrease. Rising temperatures may lead to increased chances of diseases such as hantavirus, encephalitis, dengue fever, and allergic asthma.
Things we can do to reduce the impact of the greenhouse effect include:
Cherish energy and the environment from the heart, reduce energy usage and improve energy usage efficiency. In daily life, turn off the lights, save electricity, take public transportation when going out, and walk better to save gasoline consumption. These are things that each of us can do.
Other important impacts include:
(1) Drastic changes in plant species in high latitudes.
(2) The situation in desert areas may worsen.
(3) Global warming has strengthened the global water cycle, and the frequency and severity of extreme weather phenomena such as floods and droughts may increase.
(4) Global agricultural and forest productivity will maintain the current situation, but productivity will increase in some areas and decrease in some areas.
(5) In terms of health, there will be widespread and adverse effects. For example, as the frequency of heat waves increases, deaths and illnesses will increase, and the impact of certain infectious diseases may also expand.
(6) Overall, poorer and more backward countries will be hardest hit because they have the weakest ability to adapt.
In addition, global warming will also bring about crises such as rising sea levels, abnormal weather, food shortages, and substantial changes in ecosystems.
The solutions
*Increase material recovery and recycling.
*Increase energy usage efficiency.
*Develop alternative energy sources to replace fossil fuels.
*Transfer green technology and abandon economic development strategies that sacrifice the natural environment.
*Conserve animals and plants, and establish conservation spaces and pathways.
* Strengthen relevant scientific research in natural sciences, humanities, and social sciences as the basis for formulating policies.
* Strengthen environmental education and promote it to all walks of life and all age groups to form a consensus on sustainable management.
*Everyone has environmental awareness, from using less than one plastic bag to voting in elections, investing and managing finances, formulating policies, and putting the environment first at all times.
