Ignore what you heard… if it was about Brussels being a dull cold grey and rainy city.
Do not ignore what you heard…if it was about climate change accelerating, and there being a clear and present danger of irrevocable catastrophic weather irregularities in continued heavy CO2 emissions, and so forth.
You may also spend time debating whether your super-awesome top-floor apartment in Brussels with all the Velux windows will be uncomfortably hot in the summer. Because it sure is uncomfortably hot now.