Tony

Ok I found a solution. The only way to remove jQuery core and migrate scripts from website’s frontend is to use wp_print_scripts hook. It’s dirty but I had no choice.

if (!is_admin()) {
	function de_script() {
	   wp_dequeue_script( 'jquery' );
	   wp_deregister_script( 'jquery' );
	   wp_register_script('jquery', "//ajax.googleapis.com/ajax/libs/jquery/1.6.0/jquery.min.js", false, null);
	   wp_enqueue_script('jquery');
	}
	add_action('wp_print_scripts', 'de_script', 100 );
}

@esmi: As far as I know, the only way to register your own jQuery library is to first deregister existing one. (At least this was practiced in earlier versions of WordPress.)

@andrew: First of all, I updated from 3.6 to 3.7.1. On versions 3.6 I was loading jQuery 1.6.0 from Google – It was working fine. When I updated to WP 3.7.1, all of a sudden, WordPress started loading it’s own jQuery v1.10.2:

<script type='text/javascript' src='http://mysite.com/wp-includes/js/jquery/jquery.js'></script>
<script type='text/javascript' src='http://mysite.com/wp-includes/js/jquery/jquery-migrate.min.js'></script>

And there is no way to modify this. Does this make sense?

Thank you so much keesiemeijer!

Think I got it!

So just to confirm I’m understanding it right.
I should:
1. Leave categories as they are now (regions only!)
2. Register a Custom Taxonomy “Topic” and then create terms within that taxonomy (Weather, Economy, Tourism…)

Correct?

In that case my URLs would look like this: mysite.com/europe/uk/ (by using Yoast SEO plugin, “category” is removed from URLs)

One thing I’m not sure though is will WP automatically filter posts by “wheather” term if I supply for instance these URLs: mysite.com/europe/uk/wheather/ or even this link: mysite.com/wheather/

Or perhaps I neeed to rewrite URLs?

YAY! That worked! Thank you Chandan so much!!!

I accutaly needed to get all categories for a specifiec post, delimited by spaces, so here it is:

$terms = get_the_terms($post->ID, 'your_taxonomy_here' );
if ($terms && ! is_wp_error($terms)) :
	$term_slugs_arr = array();
	foreach ($terms as $term) {
	    $term_slugs_arr[] = $term->slug;
	}
	$terms_slug_str = join( " ", $term_slugs_arr);
endif;
echo $terms_slug_str;

WOW took me forever to find a solution:

Yeah, I was right! Other rules apply for custom taxonomies (categories). If you want to display only posts from current category
you would need to filter it by a slug, NOT category ID:

$term = get_term_by( ‘slug’, get_query_var( ‘term’ ), get_query_var( ‘taxonomy’ ) );
//print_r($term);
$loop = new WP_Query( array( ‘post_type’ => ‘product’, ‘catalog’ => $term->slug));

…