Options +FollowSymLinks
RewriteEngine On
<IfModule mod_rewrite.c>
	RewriteCond %{HTTPS} off
	RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
	RewriteCond %{HTTP_HOST} !^www\. [NC]
	RewriteRule (.*) https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>

errordocument 404 /404.php
RewriteRule https://www.carbonchemistryconference.com/ index.php

RewriteRule scientific-committee/ scientific-committee.php
RewriteRule scientific_committee/(.*) scientific-detail.php?id=$1
 RewriteRule speakers/(.*) speakers.php?id=$1
 RewriteRule speaker/(.*) speaker-detail.php?id=$1
RewriteRule program/scientific-sessions/(.*) scientific-session-detail.php?id=$1
RewriteRule sponsors_exhibitors/(.*) sponsors_exhibitors.php?id=$1
RewriteRule scientific-program-title/(.*)/(.*) scientific-program-title.php?cat=$1&id=$2