Each winter, sea ice forms in both the Arctic and the Antarctic, then it retreats with each summer, but does not completely disappear. Explore all about sea ice with Earth Observatory: http://go.nasa.gov/2dtIVxP
gd-system-plugin domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/wp-includes/functions.php on line 6114easy-digital-downloads domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/wp-includes/functions.php on line 6114$l10n parameter must be an array. To pass arbitrary data to scripts, use the wp_add_inline_script() function instead. Please see Debugging in WordPress for more information. (This message was added in version 5.7.0.) in /var/www/wp-includes/functions.php on line 6114Each winter, sea ice forms in both the Arctic and the Antarctic, then it retreats with each summer, but does not completely disappear. Explore all about sea ice with Earth Observatory: http://go.nasa.gov/2dtIVxP
