The Kyoto2 Support Group (K2S): Proposals for cutting emissions

Here is a summary of the main proposals for how to cut emissions of greenhouse gases, some more comprehensive than others:

Aviation and shipping cap-and-trade.
Cap and dividend.
Cap and share.
Contraction & convergence.
James Hansen's proposal for a "fee-and-dividend" system is described in Copenhagen has given us the chance to face climate change with honesty (The Observer, 2009-12-27), in Sack Goldman Sachs Cap-and-Trade (PDF, 14 KB), and in Storms of my grandchildren, London: Bloomsbury, 2009.
Global carbon trading: a framework for reducing emissions (PDF, 3.6 MB, Mark Lazarowicz MP, July 2009). This and related reports may also be downloaded from the DECC website.

Greenhouse development rights.
Kyoto1: the Kyoto protocol and associated schemes such as the EU ETS, the CDM, voluntary carbon offsets, EU targets for cuts in emissions by member countries, and more.
Kyoto2.

Submission by Mexico (PDF, 132 KB, 2008-08-13).
Personal carbon allowances.
Solving the climate dilemma: the budget approach (PDF, 2.3 MB, German Advisory Council on Climate Change (WBGU), November 2008).

The main features of schemes to cut emissions of greenhouse gases are summarised in this table:

Short name	Full name	Budget	U or D	Funds	GHG scope
ASCT	Aviation and shipping cap-and-trade	Yes	D	Yes	CO2
CD	Cap and dividend	Yes	U	No	CO2
CS	Cap and share	Yes	U	No	CO2
C&C	Contraction & convergence	Yes	D	Yes	All
FD	Fee and dividend	No	U	Yes	CO2
GCT	Global carbon trading	Yes	D	No	All
GDR	Greenhouse development rights	No	D	Yes	CO2
K1	Kyoto1 and associated schemes	No	D	Yes	All
K2	Kyoto2	Yes*	U	Yes	All
M	Submission by Mexico	No	?	Yes	CO2
PCA	Personal carbon allowances	Yes	D	No	CO2
WBGU	German Advisory Council on Climate Change (WBGU)	Yes*	D	Yes	All

Key:

Budget: a global budget for emissions of industrial greenhouse gases. 'Yes*' means that the importance of a global budget is given particular emphasis.
U or D: "Upstream" or "downstream" controls?
Funds: Proposes mechanisms to raise funds for mitigation and adaptation?
GHG scope: The range of greenhouse gases that are controlled.