Today I went to the playground with Mika. It was great fun. First we went on the swings, then we had a few goes on the roundabout.

Today, Dad drove me and Mika to the park near our house. On the way there, we saw our friend Fathima riding her bicycle to the park.

Today was a beautiful sunny fall day. Mika and I went to the park and had ice cream. There was a little snowflake on the ice cream cup, which got me thinking. I have noticed that drawings of snowflakes often have six corners. But is this also the case in nature?

Today, Mika and I were once again at the Leipzig Institute of Meteorology. While we were strolling through the new building, we saw a room with “Laboratory” written on the door. Curious, we poked our noses in. Behind a large measuring device...

The other day, I really wanted to go swimming at the lake in the morning straight after getting up. My parents agreed, though it turned out later that it wasn't that warm.

Janna, I have often interviewed you for Mia's climate diary. Could you please introduce yourself briefly? Sure! I am Janna Rückert and I am a physicist in Bremen. I enjoy climbing (even though there are few mountains here in the north) and my favourite ice cream flavours are cinnamon (to eat) and sea ice (for research).

I recently learned that there are different types of clouds at different altitudes. Now I want to know more about how clouds are formed.

In our atmosphere, clouds are mainly found at altitudes of up to 12 km.

It’s been raining all day today. I’m sitting with Mika on my favorite yellow couch, pondering how rain actually forms. I decided to call Johannes Quaas. He said, “If we look at weather patterns, rain comes about when moist air converges and the water is squeezed out as rain, so to speak.”