阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
When police experts debate climate change solutions, they often talk about “a price on carbon". They are    (argue) about whether companies shouldpay when they put carbon pollution in the air.
Carbon pollution, like every other from of pollution,   (have) an impact on the environment.    (throw) waste into a river will cause the fish to die and the people       drink the water to get sick. And when you produce carbon pollution, you get climate change-sea level rise, stronger storms, severe droughts, damage to agriculture, and more.
All of those impacts cost money. Insurance rates go up when storms get more      (destruction). Taxes increase when cities have to rebuild bridges and roads. Military budgets go up when droughts and population         (change) cause conflict, not to mention impacts on agriculture and health care costs.
In other words, the price on carbon is        we all pay when there is no market force     (limit) the pollution that causes climate change. So the debate is        (real) about who will pay that price--     companies which are making a profit from the fossil fuels, or the taxpayers who pick up the cost now?