The party filed an Official Information Act request with Prime Minister and Minister of Tourism John Key's office asking for documents assessing the potential impact of climate change on the tourism industry. Last month, the office responded saying no such documents existed.
Green Party co-leader James Shaw said he was ''surprised they hadn't even asked for the information''.
''It's not unusual for the Government to go and get a whole bunch of information and then ignore it,'' he said.
''But it seems lax that they haven't even asked for an assessment.''
The Green Party's information request was sent as part of a slew of other requests about assessment of climate change's impact on other industries, Mr Shaw said.
''We've actually gone through industry by industry and asked the Government ... what information they've been looking for in terms of the impact of climate change on those industries.''
He said they had lodged ''a hell of a lot of requests'' covering all of the ''major industry sectors'' and had not uncovered any assessments thus far.
Mr Shaw, the Green Party's tourism spokesman, said his concern for the snow sports industry stemmed from a National Institute of Water and Atmospheric Research (Niwa) report on climate change that predicted a ''shortened duration of seasonal snow lying; rise in snowline; decrease in snowfall events'' by 2040.
Mr Shaw said the science was not ''perfect'' but it was clear climate change would have negative repercussions on the industry.
''While there may be snow, it's not going to be consistent enough to create the kinds of fields we need for good snowboarding and skiing,'' he said.
Snow Sports NZ chief executive and Ski Areas Association of NZ chairman Martin Toomey said the industry was ''acutely aware of the risk posed by climate change''.
''The biggest risk of unchecked climate change is that in future generations it may negatively impact annual snowfall or the snowline,'' he said.
''With either scenario, ski areas would be required to commit more resource to making man-made snow or managing their natural snowfalls.''
He said ''smart technology'' had been developed that would allow ski areas to ''manage snow cover across their mountains''.
Mr Shaw said tourism was just one industry that stood to suffer, and inaction on climate change was already costing New Zealand money.
''Back in 2013, we had the worst drought in 70 years. It wiped $1.5 billion off agricultural exports, and it was a pretty substantial hit to the economy and agricultural sector, and Victoria University did a study that ... said the length and severity of drought was 95% chance due to climate change.''
The Green Party was drawing a link between climate change and tourism in an attempt to ''humanise [climate change] and connect it with things people care about'', he said.
''Tens of thousands of Kiwis go skiing and snowboarding every year in New Zealand. For some of them, climate change is this thing happening in future to polar bears. We're trying to say, yeah, but it's also happening to us here, and happening now.''
Asked for comment, a spokeswoman for Mr Key said the Government was ''well aware of the challenges climate change will present to many sectors, including tourism and specifically the snow sport industry''.
''Some of the reports Mr Shaw refers to were commissioned and funded by the Government.''
The Government was ''keen to make an ambitious contribution to the international effort to reduce greenhouse gas emissions'', she said.
