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@ARTICLE{Ilha:619032,
author = {Ilha, Gabrielle dos Santos and Boix, Marianne and
Knödlseder, Jürgen and Garnier, Philippe and Montastruc,
Ludovic and Jean, Pierre and Pareschi, Giovanni and Steiner,
Alexander and Toussenel, François},
title = {{A}ssessment of the environmental impacts of the
{C}herenkov {T}elescope {A}rray mid-sized telescope},
journal = {Nature astronomy},
volume = {8},
number = {11},
issn = {2397-3366},
address = {London},
publisher = {Nature Publishing Group},
reportid = {PUBDB-2024-07332, arXiv:2406.17589},
pages = {1468-1477},
year = {2024},
note = {32 pages, 4 main figures, 3 extended data figures},
abstract = {Astronomical observatories have been identified as
substantial contributors to the carbon footprint of
astrophysical research. Being part of the collaboration that
is currently developing the medium-sized telescopes in the
Cherenkov Telescope Array, a ground-based observatory for
very-high-energy γ-rays that will comprise 64 telescopes
deployed on two sites, we assessed the environmental impacts
of one medium-sized telescope on the northern site with a
life-cycle assessment. We identified resource use and
climate change as having the most significant impacts due to
telescope manufacturing and energy consumption during
operations. We estimate life-cycle greenhouse gas emissions
of 2,660 ± 274 tCO$_{2}$e for the telescope, 44\% of which
arise from construction, 1\% from on-site assembly and
commissioning and 55\% from operations over 30 yr. The
environmental impacts could be reduced by using renewable
energy during construction and operations, using fewer
electronic components and metal casting and using recycled
materials. We propose complementing the project requirements
with environmental budgets as an effective measure for
impact management and reductions.},
cin = {$Z_EL$},
ddc = {520},
cid = {$I:(DE-H253)Z_EL-20210408$},
pnm = {613 - Matter and Radiation from the Universe (POF4-613)},
pid = {G:(DE-HGF)POF4-613},
experiment = {EXP:(DE-H253)CTA-20150101},
typ = {PUB:(DE-HGF)16},
eprint = {2406.17589},
howpublished = {arXiv:2406.17589},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2406.17589;\%\%$},
UT = {WOS:001271759600002},
doi = {10.1038/s41550-024-02326-4},
url = {https://bib-pubdb1.desy.de/record/619032},
}