 The potential rise in sea levels due to global warming could threaten Egypt's densely populated coastal strip and have grave consequences for the country's economy, agriculture and industry.Combined with growing demographic pressures, a significant rise in sea levels could turn millions of Egyptians into environmental refugees by the end of the 21st century, according to some climate experts.Egypt signed the Rio Convention on Biological Diversity on 9 June 1992, and became a party to the convention on 2 June 1994.