The other is for “outcome testing” through bilateral or plurilateral discussions as Members seek to clarify the deal, its value and the scope for flexibilities.30 On a technical level, there are open questions relating to product coverage and negotiating modalities. Is there a scope for a sectoral agreement on tariff reduction or elimination? Are there alternatives, considering climate friendly goods are, by definition, environmentally preferable products (EPPs)? Can they be redefined as a class of their own based on the source of energy, i.e. the resource rather than their use? And would it not make more sense to refocus the negotiations on non-tariff barriers to trade? Does a straightforward approach to the liberalization of trade in climate-friendly goods and services square with the real life economics?