"Clearly we will be expected to make a substantial contribution (to the reconstruction effort), " said Patten.

CNN: EU to debate Afghan future

The government has said it expects to see CCS starting to make a substantial contribution to UK and global efforts to tackle climate change in the 2020s.

BBC: Debate on carbon capture and storage

Even though many farmers recognized the potential of checkdams, it was not easy to build them because there were no handtools and it took some years before enough land could be created to grow enough cereals to make a substantial contribution to the family diet.

UNESCO: Title

Ordinarily, when a Scientologist does something wrong, especially something that might damage the image of the organization, he has to make amends, often in the form of a substantial contribution.

NEWYORKER: The Apostate