global warming increases meltwater discharge, increases river discharge, increases sediment in the river and reduces water quality
Global warming will melt glaciers and make HEP redundant
Global warming melts glaciers + tundra which are habitats for animals
glacial meltwater will disrupt the thermohaline circulation as it decreases the salinity of the ocean
global warming will cause water discharge to initially increase in the Ganges but it will then fall as the water dries out in the dry season
Global warming means that emperor penguins - who are ice loving - have to go further to find food and have less shelter - 83% decline in breeding pairs
Rising sea levels threaten to drown important coastal nesting sites for penguins
emperor penguins are facing extinction - they are part of the food chain - killer whales feed off them
emperor penguin’s population will decrease by 26% to 47% by 2050 - US fish and wildlife service
communities rely on 30% of their water coming from the Peruvian Andes
global warming causes a positive feedback cycle
global warming - glacial retreat - negative mass balance - increased sediment in rivers - decrease the carrying capacity - low flow rates - sudden flood burst
global warming - glacial melt - less freshwater available - holds 75% of world's freshwater - will melt into the saline ocean
global warming - glacialmelt - change chemical composition of water - more nutrients such as nitrogen and phosphorus
7 grizzly bears died one year in Yosemite after being hit by cars
Yosemite visitation has increased by 30%
Yosemite put in a central car park that aims to reduce noise pollution and congestion
Yosemite has increased their fees to $20
scale is hard to address in Yosemite as there are many access points
climate change is hard to manage because it is a context risk and requires a unitary response
Aletsch glacier has emerald trails that concentrates footpath erosion + has signs that educates walkers
Lindblad said you cannot protect what you don't know
Antarctic management
cannot go within 5m of animals
75% field team needs to have experience
limited to a 100 tourists at a time
2015 there was a ban of cruise ships in pristine landscapes
Kames are found in Gleann Emich
Denali national park in Alaska provides visitors with education
Zermatt
locally sourced water
carfree - buses and taxis are electric
eco-speeddiesel to fuel piste bashers that release 11% less CO
non-profit group environment America is campaigning to Congress to protect Alaska
there are refrigerated supports on the legs of the trans-Alaskan pipeline to prevent oil spills + reduces heat transfer that melts permafrost
WWF has set up nature reserves in Alaska e.g., Bristol bay - protects wildlife e.g., salmon but is a large area that is difficult to manage
movement to drill laterally from oil rigs in Alaska - more oil can drilled without lots of wells - reduces the amount of CO2 released from gas flaring - hard to implement
piste bashers in Zermatt release
11% less CO compared to other resorts
Alestche glacier is still retreating but
this is at a slower rate compared to other alpine glaciers across the world
the alpine convention aims to introduce wildlife
corridors which helps reduce the risk to animals who may migrate because of climate change and glacial melt