Quark 2025 SustainabilityReport web

ACCOUNTING FOR GREENHOUSE GAS EMISSIONS More than a reporting exercise, carbon accounting is how we understand our operational impact and improve our fleet. We’ve tracked our emissions since 2019, which continues to enable evidence-based decisions about fuel efficiency investments, route optimization, and technology upgrades. Operating in the Polar Regions presents unique challenges. Our ships use marine gas oil in locations where fuel supply chains are limited, and weather conditions affect efficiency. Switching to lower-carbon fuels remains a logistical challenge. We focus on what we can control: our fleet, the technologies they use, and how we operate them. Since our 2019 baseline, emissions intensity per passenger has decreased by 31%, exceeding our progress toward the 20% reduction target by 2025. This was driven by improvements in our fleet, reduced repositioning voyages, and increased occupancy rates.

In 2024

GHG Emissions per Passenger -31% from 2019

Absolute GHG Emissions* -21% * Driven in part by the retirement of Ocean Diamond from the Quark Expeditions fleet

26 | For more information, contact Quark Expeditions at Sustainability@QuarkExpeditions.com

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