AFRICAN nations have been urged to step up preparations for what could become one of the strongest El Nino events on record, say scientists.Climate scientists issued a warning on Thursday that heavy rains, floods, droughts and other extreme weather conditions could trigger widespread humanitarian and economic impacts across the continent from October.

AFRICAN nations have been urged to step up preparations for what could become one of the strongest El Nino events on record, say scientists.

Climate scientists issued a warning on Thursday that heavy rains, floods, droughts and other extreme weather conditions could trigger widespread humanitarian and economic impacts across the continent from October.

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