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Scientists have made an alarming discovery what kinds pollution are most harmful to seabirds. A study led Australia's Institute Marine and Antarctic Studies discovered that balloons were the deadliest kind plastic for seabirds. The research team said balloons were 32 times more likely to kill seabirds than hard plastics. They found that while balloons and other soft plastics accounted only 5 per cent plastics ingested, they were responsible more than 40 per cent deaths among seabirds. Lead researcher Lauren Roman said: "Hard plastic fragments may pass quickly the gut, but soft plastics are more likely to become compacted and cause fatal obstructions."

The study examined 1,733 dead seabirds and found that more than a quarter the deaths were attributed to eating plastic. Ms Roman explained that plastic is becoming an increasing threat to seabirds. She said: "Marine debris ingestion is now a globally recognized threat....We suggest that reducing the presence balloons and balloon fragments the ocean would directly reduce seabird mortalities." said: "With an estimated 280,000 tons floating marine debris worldwide, half all seabird species are thought to ingest plastic a daily basis. Birds are especially likely to swallow dangerous balloons because they closely resemble squid, according to the study."

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