Food security,nutrition and sustainable agriculture must remain a priority issue on the political agenda. The Global Conference on Agricultural Research for Development runs through March 31st.

VOA: standard.2010.03.29

I think that global warming is an extremely important issue for our time.

我觉得全球变暖是我们时代一个极其重要的问题。

全球变暖和发达国家 - SpeakingMax英语口语达人

And he pointed to the issue of trying to develop agreed standards of reform in the global financial world where progress has been made, but where much more work is required.

VOA: standard.2009.03.30