'We know how to kill it': Irish national park battles slow-motion ecological calamity

Invasive species such as rhododendron have plagued Killarney park but managers say they are winning the fightKillarney national park is Ireland's environmental jewel, a 10,000-hectare Unesco biosphere reserve with ancient oaks and sublime landscapes that drew 1.7 million visitors last year.It is expecting even more this summer after a star turn in David Attenborough's documentary series Wild Isles that showed two red deer stags locked in a dramatic battle for a harem of females. Continue reading...