Rising seas put islands' people under siege  By Isaac Davison
Majuro atoll in the Marshalls is the front line of the battle
against climate change  Makeshift seawalls are ineffective
against king tides in the low-lying coral atoll of Majuro in the
Marshall Islands.  Romeo Jorbon scratches a line in the dirt
with his big toe.  "The last big tide came to here," the
Marshall Islander says, marking a spot 10m back from the beach
and behind a makeshift seawall.  The shoreline behind him is
built up with piles of rubbish and tangled, rusty bird's nests
of metal scrap, bulldozer tracks, tyres and car parts in a
desperate attempt to keep the Pacific Ocean from spilling onto
the land.  "We use anything we can," says the Majuro
schoolteacher and father of eight.  His front lawn is the front
line of climate change.  Jorbon, 42, recently shifted into a
house in the middle of Majuro - a former Japanese and American
base in the central Pacific - to get further away from the sea.
But the 28,000 residents on the Marshall I