Joëlle Welfring was born on 22 June 1974 in Esch-sur-Alzette.
After finishing her secondary education at the Lycée Hubert Clément, Joëlle Welfring completed her studies at the Université Louis Pasteur in Strasbourg, where she obtained a master's degree in biochemistry in 1997. In 1998, she obtained a master's degree in environmental sciences at Brunel University in London.
On April 17 2023, the Prime Minister, Minister of State, Xavier Bettel, the Minister for the Environment, Climate and Sustainable Development, Joëlle Welfring, the Minister for Energy, Claude Turmes, and the Minister of the Economy, Franz Fayot, presented the first draft for the update of the "Energie- a Klimaplang fir Lëtzebuerg".
On Thursday, 30 March, Minister of Finance, Yuriko Backes, Minister for the Environment, Climate and Sustainable Development, Joëlle Welfring, and Vice-President of the European Investment Bank (EIB), Kris Peeters, presented a financing agreement between Luxembourg and the EIB to fund the ecological restoration of the Alzette river and its tributary, the Pétrusse.
The Minister for the Environment, Climate and Sustainable Development, Joëlle Welfring, represented Luxembourg at the United Nations Water Conference 2023, the first since 1977, which took place from 21 to 24 March 2023 at the United Nations headquarters in New York. The conference was a great success and provided decisive answers to the global water crisis.
On 9 February 2023, the Minister for Tourism, Lex Delles, and the Minister for the Environment, Climate and Sustainable Development, Joëlle Welfring, awarded the 'EcoLabel Luxembourg' and 'bed+bike' labels.
