Climate changes are one of the most intuitive changes in global warming. As a result of a large amount of carbon dioxide emissions, there is a sharp rise in high-temperature weather, which has an irreversible impact on our environment and ecology. Scientists say, “Changing weather patterns linked to rising global temperatures have resulted in a dearth of wind across northern China, according to several recent studies, exacerbating a wave of severe pollution that has been blamed for millions of premature deaths”. However, when I returned home last Christmas, there was no snow on the street, instead, it was a warm winter with sunshine. The continued of global warming may not only bring about changes in climate. The world may undergo more unpredictable changes due to global warming in the future.
Global climate change has seriously affected the living environment of animals, the change of climate, the quality of human life, and the threat to human security. Global warming has become a very difficult trend to reverse. It and rising temperatures have caused very serious consequences for human beings, brought great impact on the Earth’s organisms and seriously affected people’s lives, but people didn’t realize the seriousness of the problem. It is urgent to protect the environment and people should take active measures to deal with it.

One of the most wondrous and iconic animals to walk the Earth, Bengal tigers, (31)______ are majestic and rare. They’re also one of the biggest cat species in the world. On average, Bengals are larger than (32)______ other tiger species, but the largest tiger ever (33)______ was a Siberian. As such, Bengals are considered the second largest tiger species.
Today, wild Bengal tigers are animals that only live in Bangladesh, Bhutan, India, and Nepal. (34)______ there are more Bengals than any other tiger subspecies on the Indian subcontinent, the populations are endangered. Conservation efforts are working to some degree, but they’re not (35)______ the poaching, deforestation, and human encroachment that has devastated wild tiger habitats over the past 50 years.

While light at night can be beneficial, neutral, or damaging for individual species, its presence invariably disturbs ecosystems. For example, some species of spiders avoid lit areas, while other species are happy to build their spider web directly on a lamp post. Since lamp posts attract many flying insects, the spiders that don’t mind light gain an advantage over the spiders that avoid it.
Light pollution poses a serious threat in particular to nocturnal wildlife, having negative impacts on plant and animal physiology. It can confuse animal navigation, alter competitive interactions, change predator-prey relations, and cause physiological harm. The rhythm of life is orchestrated by the natural patterns of light and dark, so disruption to these patterns impacts the ecological dynamics.
Studies suggest that light pollution around lakes prevents zooplankton, such as Daphnia, from eating surface algae, causing algal blooms that can kill off the lakes’ plants and lower water quality. Light pollution may also affect ecosystems in other ways. For example, scientists have documented that night time light may interfere with the ability of moths and other nocturnal insects to navigate. Night-blooming flowers that depend on moths for pollination may be affected by night lighting, as there is no replacement pollinator that would not be affected by the artificial light. This can lead to species decline of plants that are unable to reproduce, and change an area’s long term ecology.
Reducing light pollution implies many things, such as reducing sky glow, reducing glare, reducing light trespass, and reducing clutter. The method for best reducing light pollution, therefore, depends on exactly what the problem is in any given instance. Adjusting the type of lights used, so that the light waves emitted are those that are unlikely to cause severe light pollution problems.