The minister nevertheless acknowledged that the final draft includes "many very good" amendments for Poland.
EU environment ministers are meeting in Brussels on Tuesday to decide on the proposed target, which would commit the bloc to cutting greenhouse gas emissions by 90 percent compared with 1990 levels.
The plan would supplement existing climate law, which mandates a 55 percent reduction by 2030 and net-zero emissions by 2050.
"These goals are too ambitious for countries like Poland and do not reflect the EU average," Hennig-Kloska told radio broadcaster RMF FM.
She added, however, that recent changes to the proposal – including exemptions for the defence industry and reviews in 2030 and 2035 – were beneficial for Warsaw.
The minister said the new target had been "significantly watered down" as negotiators sought to build a qualified majority among member states.
"We know very well which amendments, jointly with Poland, were supported by France and Italy," she said.
Hennig-Kloska noted that Poland would continue pushing for further revisions, saying she remains in close contact with her French and Italian counterparts.
"We are working together to make sure the target remains more of a recommendation, with interim benchmarks and substitute measures," she added.
The vote on the 2040 target was originally scheduled for September but was delayed amid divisions among EU capitals.
Denmark, which currently holds the EU presidency, circulated a new compromise text over the weekend in an effort to secure support.
As of late last week, an EU diplomat who asked not to be named told Poland’s PAP news agency there was still no qualified majority to adopt the measure, though further changes could shift the balance in favour of approval.
Poland will be represented at Tuesday’s meeting by Deputy Climate Minister Krzysztof Bolesta.
(ał)
Source: PAP