<h2>Right answer: they are afraid to lose what they have</h2>
According to Suzuki people in northern countries do not share because they are afraid to lose what they have.
This excerpt was part of the speech Severn Cullis-Suzuki gave at the Rio Earth Summit held at Río de Janeiro, Brazil on 1992 when she was only a 12-year old girl.
In this context, Suzuki, being a child, addressed her speech to the adults at the summit, warning about the consequences of climate change and the apathy of people in this regard.
It is true walking in acid rain or even swimming in acid lake is no more dangerous than walking in clean water.
Chile, Argentina, Brazil, Paraguay
I believe your answer to be limestone, good sir.
