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When this mother was a child, there were more butterflies.

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There was also acid rain and lead in petrol.

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So we dealt with the acid rain and the lead.

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But in the meantime, half of Europe's butterflies have disappeared.

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These changes like this send us signals about the state of our environment.

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Using signals such as levels of air pollution, the volume of water or the number of species,

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we try to understand our environment, especially the impact we are having on it.

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We share our insights and publish snapshot stories that make the issues real for each

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one of us.

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And we call this publication Signals.

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