Sentence examples for concern has heightened from inspiring English sources
The concern has heightened because Senator Herb Kohl, a Wisconsin Democrat opposed to a Northeast dairy cartel, is pushing hard to get the White House on his side.
Concern has heightened among American and European officials about the possible expansion of Al Qaeda into the United States as American interests have become targets of terror attacks in Iraq, Indonesia, Saudi Arabia and Afghanistan.
However, in recent years the number of people suffering from various kinds of housing insecurity has increased steeply, and public concern has heightened and broadened the examination of ensuing housing problems.
The fear of school violence has heightened administrators' concern about underground publications and the controversies they may raise.
The markets recovered in minutes, but the episode has heightened concern among regulators about the combination of social media and high-frequency trading.
The risk that Britain could quit the EU, possibly destabilising the government, is another threat to growth that has heightened concern among international investors.
Concern about water scarcity has heightened because of a recent drought in northern regions, which some scientists fear is linked to global climate change.
The recent military coup and the imposition of martial law, however, has heightened concern over the Thai experience of military jurisdiction.
Recent emergence of influenza A H5N1 and H1N1 strains has heightened concern, especially as a result of their drug resistance.
The stratospheric ozone decrease has heightened concern over the ecological implications of increasing solar UV-B radiation on agricultural production and natural plant ecosystems.
