Climate change is increasingly affecting our daily lives. Latest research and studies in the US highlight the facts about the human-caused change to our global weather systems and its effects on our planet. First among them is that rising temperatures and increasingly chaotic(混乱的)weather are the work of humanity. There's a 99.9999% chance that humans are the cause of global warming. Humans burn fossil fuels such as oil, coal and gas, which give out carbon dioxide(CO2), methane and other gases into Earth's atmosphere and oceans. CO2, is the greenhouse gas that's most responsible for warming.
Scientists worldwide have also conducted countless researches on this issue. For example, a group of scientists in Australia have published a study analysing the contributions to climate change by the worlds nations versus the effect that climate change will have on those countries.
They have found that some developed nations, such as Australia, the US and Canada, are essentially climate free riders, driving the problem of climate change while suffering relatively few of the costs, such as destructive flood, increased extreme weather and rising sea levels. Meanwhile, many countries in Africa or small island states which produce few greenhouse gas emissions are the most vulnerable(易受损害的) countries.
While it's important that this issue is defined by scientists, it needs to be acted on by global leaders. The Paris Agreement, finalised in December 2015, was widely seen as a positive step forward in addressing climate change. However, in order to help those vulnerable countries while achieving global emissions reductions, urgent and effective actions in accordance with the policies in the Paris Agreement must be taken.
