This is not just the influence of polar bears. A rapidly changing climate threatens our whole planet and our way of life
It is completely different. 97% of climate scientists and experts in that field have the consensus that climate change is realistic and artificial.
Polar bears have not been as warm as we have seen in the next 50 years. There was a warm period in the past, but if we do not reduce greenhouse gas emissions, it will be warmer than we have experienced, it will also be part of the natural cycle of warming and cooling . These periods are primarily caused by events such as orbital changes around the sun and large-scale volcanic eruptions. Current warming is not part of the cycle, and there is no cooling unless there is human behavior.
There was no accurate data on the number of polar bears in the world. Some Polar bear populations like my 30 year population in Alaska know that it was known after managing excessive hunting in the early 1970s. However, we recently estimated several people, but there are no other people's estimates yet. However, no matter how many bears appear in the past, as long as the temperature rises and the habitat of the sea ice continues to decrease, the polar bear will only decline eventually. Wild polar bears will be extinct unless they take action to reduce greenhouse gas emissions.
But as climate change experts say everyone, climate change is not a problem in the future - it is a problem now. It is important to talk about how climate change affects natural landscapes and health, but when the world joins efforts to (almost) suppress climate change, let's discuss what it did. For our mental health
People's decisions to adapt to the effects of future climate change and to prevent further climate change will require understanding how climate change affects their communities. Until recently, however, the most powerful climate change studies were concentrated in a wide area of the world, and climate change information in our own backyard is difficult to obtain. The best tool scientists use to predict the future climate is the most advanced computer model to simulate the global climate model, climate system. The global climate model helps to understand global and continental scale climate change, but their spatial resolution is to understand the impact of climate on small scale, especially in areas like the Los Angeles area It is too low. We can not explain microclimate, global climate model
When climate scientists predict climate change between the next 2050 and 2100, they will refer to the scenario. They are used to develop policies to determine stability goals. The results of global climate change mitigation policies will lead the climate system to a new equilibrium in the next few centuries. After complete decarburization the Earth system will experience slower feedback caused by artificially induced oceans and surface temperature rise. Worriedly, humans are currently applying something between RCP 4.5 and 5 (watts per square meter) to the equivalent of atmospheric forcing. The choice between the Paris Agreement "significantly less than 2 ° C" and the higher 3-4 ° C warming level is to have global governance capacity or to choose to lose it.