ROAD TRAVEL ACCOUNTS FOR 3/4 OF TRANSPORT EMISSIONS. Most of this
comes from passenger vehicles – cars and buses – which contribute 45.1%. The other 29.4% comes from trucks carrying freight.
Since the entire transport sector accounts for 21% of total emissions,
& road transport accounts for 3/4 of transport emissions, road transport accounts for 15% of total CO2 emissions.
Aviation – while it often gets the most attention in discussions on action against climate change – accounts for only 11.6% of transport emissions.
It emits just under one billion tons of CO2 each year – around 2.5% of total global emissions. International shipping contributes a similar amount, at 10.6%.
Rail travel & freight emits very little – only 1% of transport emissions. Other transport – which is mainly the movement of materials such as water, oil,
and gas via pipelines – is responsible for 2.2%.
Transport demand is expected to grow across the world in the coming decades
as the global population increases, incomes rise, and more people can afford cars, trains and flights. In its Energy Technology Perspectives report, the IEA expects global transport (measured in passenger-km) to double, car ownership
rates to increase by 60%, and demand for passenger and freight aviation to triple
by 2070. Combined, these factors would result in a large increase in transport emissions.
https://ourworldindata.org/co2-emissions-from-transport
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AGRICULTURE HAS A SIGNIFICANT ENVIRONMENTAL IMPACT IN THREE KEY WAYS.
First, it requires large amounts of fresh water, which can cause significant environmental pressures in regions with water stress. It needs water as input and pollutes rivers, lakes, and oceans by releasing nutrients.
It is a crucial driver of climate change, responsible for around 1/4 of the world’s greenhouse gas emissions.
Finally, agriculture has a massive impact on the world’s environment due to its enormous land use. Half of the world’s habitable land is used for agriculture.
Large parts of the world that were once covered by forests and wildlands are now
used for agriculture. This loss of natural habitat has been the main driver for
reducing the world’s biodiversity. Wildlife can rebound if we reduce agricultural
land use and allow natural lands to restore.
https://ourworldindata.org/environmental-impacts-of-food
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