这里的That是否引导结果状语从句

2 这里的That是否引导结果状语从句

We need ways of presenting the problem that bring it home to governments and the wider public, says Pamela Chasek at the International Institute for Sustainable Development, in Winnipeg, Canada. ‘Most scientists don’t speak language that policymakers can understand and vice Versa.’

文章背景是说土地degradation这个问题。

1.that貌似不是定从修饰problem的，或者that引导定从，跳过of介词短语(定从可以跳过介词短语，但我没见过跳过of从属介词短语这种)，修饰ways吗？

2.that是结果状语从句吗？it是指problem吗？