The webapp provides for each item the link on ECB's website.
Speeches for : Christine Lagarde where "responsible" appeared
2021-07-11 : Climate Change and Central Banks: Analysing, Advising and Acting2021-02-08 : European Parliament plenary debate on the ECB Annual Report
2021-01-25 : Christine Lagarde: Climate change and central banking
2020-10-18 : Remarks at the G30 International Banking Seminar