Detailed Instructions: Given a text, write a compressed version of it in a single sentence.
Problem:As more environmental data become available and science improves, we are observing some environmental improvement accompanying the downward trend in emissions. However, there are persistent and growing concerns regarding recovery of ecosystems and the risks that air pollution pose to human health.
Solution:
As more environmental data become available and science improves, we're observing improvement with the downward trend in emissions. However, there are concerns regarding recovery of ecosystems and the risks of air pollution.