A majority of the world’s climate scientists have convinced themselves, and also a lot of laymen, some of whom have political power, that the Earth’s climate is changing; that the change, from humanity’s point of view, is for the worse; and that the cause is human activity, in the form. of excessive emissions of greenhouse gases such as carbon dioxide.
A minority, though, are skeptical. Some think that recent data suggesting the Earth’s average temperature is rising are explained by natural variations in solar radiation, and that this trend may be coming to an end. Others argue that there is no conclusive evidence that modern temperatures are higher than they used to be.
we believe that global warming is a serious threat, and that the world needs to take steps to try to avert it. That is the job of the politicians. But we do not believe that climate change is a certainty. There are no certainties in science. Prevailing theories must be constantly tested against evidence, and more evidence collected, and the theories tested again. That is the job of the scientists.
Yu Yuan Garden is a famous classical garden in Shanghai, with a history of more than 400 years. Ingenious in design, the garden is typical of the southern architectural style. of the Ming and Qing Dynasties. It has some 40 different scenes, presenting an attractive landscape. The pavilions, terraces, towers, rockeries and ponds are laid out in perfect harmony and balance. This exquisite layout has been renowned in the south of the Yangtzi River across ancient times.
Yu Yuan Garden was originally a private garden of a high-ranking official in the Ming Dynasty. Construction of the garden started in 1559, and it was not completed until 20 years later/ it took two decades to complete the construction. Later on, it underwent many changes and suffered repeated destruction. Luckily, by the time Shanghai was liberated in 1949, main scenic points in the garden were still in good condition. After a number of renovations which first began in 1956, Yu Yuan Garden has regained its splendor of the former days.