...the major conclusions of the 1990 assessment The major conclusions of the 1990 assessment include: Agriculture and Forestry Sufficient evidence is now...will have a negative impact on crops and livestock. The rotation period of forests is long and current forests will mature and decline during a climate...

...the major conclusions of the 1990 assessment The major conclusions of the 1 990 assessment include: Agriculture and Forestry Sufficient evidence is now...rapid population growth. An increase or change in U VB radiation at ground level resulting from the depletion of stratospheric ozone will have a negative...

...greater threat to survival from agricultural failure and rising food costs. The IPCC concluded that: 'food production at the global level can be maintained...change; however, the cost of achieving this is unclear'. Parry estimates that, for moderate climatic impacts on agriculture due to carbon dioxide doubling,...

...determined whether global agricultural potential will increase or decrease. The evidence suggests that food production at the global level can be maintained at essentially the same level regardless of climate change. Regional production patterns could be altered as a result of changes...

...suggests that in the face of estimated changes of climate, food production at the global level could be maintained at essentially the same level as would...climate change; however, the cost of achieving this was unclear." As an offshoot of this effort, the ERS (Kane, Reilly, andTobey 1991; Kane 1992; Tobey,...