We had trees on the main streets in my home city. Then they "modernized" it, widened the roads and cut the trees (even though there was still enough space for them, or at least newly planted ones!).

Now it looks pretty shit (just imo), and it's hellish in summer - no shade, hot as hell, the buildings with their new windows and white finishes are blinding. I used to love walking there, now I avoid them.