...increase in response to global warming and further enhance it. You further calculated with confidence that the long-lived gases would require immediate reductions in emissions from human activities of over 60 percent to stabilize their concentrations at today's levels. You said further here today, 60 to 85...

...change at regional scales on intensively managed and unmanaged terrestrial and oceanic ecosystems. APPENDIX PART I: Executive Summary from Working Group...in emissions from human activities of over 60% to stabilize their concentrations at today's levels; methane would require a 15 - 20% reduction. Based...

...for over half the enhanced greenhouse effect in the past and is likely to remain so in the future. t o atmospheric concentrations of the long-lived gases...in emissions from human activities of over 60% to stabilize their concentrations at today's levels; methane would require a 15 - 20% reduction. Based...

...rates, the greater reductions would have to be for concentrations to stabilize at a given level. . the long-lived gases would require immediate reductions in emissions from human activities of over 60 percent to stabilize their concentrations at today's levels; methane would require a 15 to 20 percent...

...emissions of these gases at present rates, would cause increased concentrations for centuries ahead. • The long-lived gases would require immediate reductions in emissions from human activities of over 60 percent to stabilize their concentrations at today's levels; methane would require a 15 to 20 percent...

...to be for concentrations to stabilize at a given level. Next — we calculate with confidence that the long-lived gases would require immediate reductions in emissions from human activities of over 60 percent to stabilize their concentrations at today's levels. Methane would require a 15- to 20-percent...

...Earth's surface' (IPCC, 1990, p. 1). The report calculated that 'the long-lived gases [including COJ would require immediate reductions in emissions from human activities of over 60 per cent to stabilize their concentrations at today's levels', and it predicted that, under the 'Business-as-Usual'...

...climate change. IPCC's first assessment report concluded that “...the long-lived gases (including CO2) would require immediate reductions in emissions from human activities of over 60 percent to stabilize their concentrations at today's levels” (IPCC, 1990). Following the publication...

...rates, the greater reductions would have to be for concentrations to stabilize at a given level. • the long-lived gases would require immediate reductions...in emissions from human activities of over 60% to stabilize their concentrations at today's levels: methane would require a 15-20% reduction. Based on...

...rates, the greater reductions would have to be for concentrations to stabilize at a given level. • the long-lived gases would require immediate reductions in emissions from human activities of over 60 percent to stabilize their concentrations at today's levels; methane would require a 15 to 20 percent...