Even as their share grows, variable renewables face serious economic challenges at higher levels of integration. (greentechmedia.com)
In the last three years, the country has gone through serious economic challenges, which compelled government to resort to the International Monetary Fund for help. (citifmonline.com)
The city of Detroit has faced serious economic challenges in the past decade, with a shrinking population and tax base while trying to maintain essential services. (cnbc.com)