Developed nations that drive climate change incur relatively few of the costs whereas countries that produce few greenhouse gas emissions will be hard-hit, like nonsmokers exposed to second-hand smoke.“Less than four percent of countries are responsible for over half the world’s greenhouse gas emissions,” Glenn Althor of the University of Queensland said.“This means that the majority of countries are unfairly bearing the burden of a problem that they did not create. Clearly, this isn’t fair by any definition. It’s much like a non-smoker being trapped in a room and getting cancer from second-hand smoke while a heavy smoker continues to puff away in good health.”“We found that developed nations, such as Australia, the United States, Canada and Russia, are essentially climate free riders, driving the problem of climate change while incurring relatively few of the costs, such as devastating flood, increased extreme weather and rising sea levels.”Meanwhile, the most vulnerable countries, many of which are in Africa or are small island states, produce few greenhouse gas emissions.“While it’s important that this issue is defined by scientists, it needs to be acted on by global leaders. The Paris Climate Agreement, finalized in December 2015, was widely seen as a positive step forward in addressing climate change. However, there must be an urgent and meaningful mobilization of the policies outlined in the Paris Agreement if we’re to help the most vulnerable countries adapt to climate change while achieving global emissions reductions.”1.What does the passage mainly talk about?A) Glenn Althor’s study shocks the world.B) Many countries signed the Paris Climate Agreement.C) Climate change most affects nations that didn’t produce it.D) Developing countries in Africa produce more greenhouse gas.2.What do we learn about Glenn Althor?A) He found less than four percent of countries released over half of the greenhouse gas.B) He believes many small African countries produce half of the waste gas.C) He found developed countries should be responsible for climate change.D) He claims climate change results in acid rains and rising sea levels.3.What do we know about the Paris Climate Agreement?A) It compares the developed countries to non-smokers.B) Its goal is to slow down climate change.C) It refused African countries to join in.D) It was signed in December 2015.