There is continuing debate on how non-CO2 climate effects from aviation should be included in greenhouse gas air travel calculators. SEI shows that underlying this debate are not primarily scientific gaps but differing policy choices that have to be made in order to estimate aviation’s other climate effects.
Offset markets are rapidly expanding and maturing. SEI’s CORE programme, the Carbon Offset Research Education Initiative, offers one of the few comprehensive comparisons of international, national and sub-national offset programs and standards.
Current climate science suggests that global greenhouse gas emissions must decline by as much as 80 per cent by 2050 to avoid unacceptably high risks. To achieve this goal, we must dramatically transform how we produce and use energy, manage land, and value the climate in our economic system. Such a transition will require far-reaching local, national and international climate policies, with support and participation by businesses and communities.
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