Train travel generally produces the lowest amount of carbon emissions per passenger-mile compared to other modes of transportation.

Carbon dioxide (CO2) is the main greenhouse gas emitted by air travel, contributing significantly to climate change.

Flying in economy class, choosing non-stop flights, and offsetting carbon emissions are all effective ways to reduce the carbon footprint of a flight.

Energy efficiency refers to reducing the amount of energy required to provide products and services.

Energy consumption, water usage, and food waste all contribute to the carbon footprint of a hotel stay.

Carbon Capture and Storage (CCS) involves capturing carbon dioxide from industrial sources and storing it underground.

Driving a fuel-efficient vehicle, carpooling, using public transportation, and avoiding rush hour traffic can all help reduce the carbon footprint of a road trip.

Carbon footprint refers to the total amount of greenhouse gases produced to support human activities.

Solar energy, wind energy, and hydropower are all renewable sources of energy.

Sustainability refers to reducing or eliminating the negative impact of human activities on the environment.

Choosing a smaller cruise ship, opting for sustainable shore excursions, and reducing energy consumption in the cabin can all help reduce the carbon footprint of a cruise.

Reforestation involves planting trees or restoring forests to absorb carbon dioxide from the atmosphere.

Choosing sustainable accommodations, using video conferencing, and offsetting carbon emissions can all help reduce the carbon footprint of a business trip.

Carbon neutrality, net zero emissions, and climate neutrality all refer to reducing greenhouse gas emissions to a level that is equivalent or lower than the amount absorbed by natural sinks.

Fossil fuels (oil, gas, and coal) are non-renewable sources of energy.