@Zacs,
The wording within the article is: -
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The ministry of the environment told me huge progress had been made on the issue but the failure to get rid of all illegal dumps was down to three reasons - problems in the local administration, the "island character" of the country, with around half the sites on cut-off islands, and local opposition to building proper waste plants.
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Some might prefer to see brackets instead of commas, for the 'aside' comment, e.g.: -
//the "island character" of the country (with around half the sites on cut-off islands)//
h.t.h.